Upgrade to CSS4J 0.35.1

Version 0.35.1
--------------
 * Core:
- BUG: Fix wrong match of the :link pseudo-class. Reported by V. Massol.
- Use plain styles for override and inline styles.
- Better spec conformance for DOMTokenList implementations.
- Remove OriginPolicy implementation from core, and create new css4j-agent 
  module.
- Move doc.structure package to staging tree.
- Improvements to TokenProducer.
- Move css unescape method to new class ParseHelper.
- Move parsing error codes to ParseHelper.
- Selectors: implementations of SAC's AttributeCondition.getSpecified() cannot
  be trusted.
- Small correction to AbstractUserAgent.java.
- Try to increase feature coverage in tests.

- A few javadoc comment changes.

 * Dom4j module:
- Use plain styles instead of computed styles for override and inline styles.
- Try to increase feature coverage in tests.

Version 0.35
------------
 * Core:
- Support for level 4 media queries, backed by CSSCanvas implementations. If
  only plain media types are found, the old DOMMediaList-based infrastructure is
  used instead.
- Remove method parseMediaQueryList from CSSCanvas and add
  getFeatureValue(String).
- Add method getTargetMedium() to CSSDocument.
- Add method CSSDocument.hasStyleIssues().
- Add method isKnownProperty(String) to PropertyDatabase.
- Change DOMMediaList.create to DOMMediaList.createMediaList.
- calc() values: report a DIMENSION primitive type if it has a sized-unit 
  operand, NUMBER otherwise.
- Support for the font-size-adjust, font-stretch and font-synthesis properties 
  (CSS Fonts Module Level 3).
- Add meta-information about properties font-min-size and font-max-size.
- Do not stop parsing if a valid SAC value turns out to be a wrong css value.
- Avoid bogus "unknown identifier" errors when processing the 'background' and 
  'border-image' shorthands.
- Fixes for the 'background' shorthand parsing: the specification was misread 
  regarding when to invalidate layers. Additionally, some background-repeat
  values could be lost, and unitless zero-values were not recognized as
  belonging to background-position or background-size.
- Fix a possible problem setting border-image-outset when it is set to zero with 
  the border-image shorthand.
- Improved handling of wrong color values (e.g. 'rgb(12, 45)').
- Give currentColor as the initial value for all properties with a name that 
  ends with "-color".
- Improvements to error handlers.
- More efficient implementation of AbstractCSSStyleSheet.hasRuleErrors()
- PropertyDatabase.isInherited(String) is now backed by a set instead of a list.
- Remove unused CSSPropertyName infrastructure.

 * Dom4j module:
- Adapt to changes in core.

Version 0.32.1
--------------
 * Core:
- DOM implementation: change attribute's getLocalName() behavior to match 
  element's.
- DOM implementation: document current getLocalName() behavior and other 
  differences with the spec.
- DOM implementation: small conformance changes to Node.getTextContent() 
  implementation.
- Fixes for nth-* pseudo-class selectors.
- More conformant handling of '[att|=val]' attribute selectors.
- Add support for the disabled, enabled, read-write, read-only, matches, has,
  not, placeholder-shown, default, checked and indeterminate pseudo-classes.
- Attempt to support namespaces in selectors (untested as not being supported by
  SAC parsers).
- Support more SAC conditional selectors, essentially unused or unsupported by 
  SAC parsers.
- SelectorMatcher: replace hasStatePseudoClasses static method with 
  findStatePseudoClasses.
- Remove several useless 'XXX' task markers.

 * Dom4j module:
- Add a createElement(String) convenience override to XHTMLDocumentFactory.
- Fixes for nth-* pseudo-class selectors.
- Support the selector changes in core.

 * Java2d module:
- Java2DXHTMLElementReplacer: use getTagName() instead of getLocalName() to
  replace elements.

 * Visual module:
- LogErrorHandler: use getNodeName() instead of getLocalName() when logging.

Version 0.33
------------
 * Core:
- ContentModel: throw IllegalArgumentException instead of NullPointerException 
  for unknown declarations.
- Add the getId() method to CSSElement.
- Now getComputedStyle returns a ComputedCSSStyle instead of a
  CSSComputedProperties, enabling access to methods like 'diff' without a class
  cast.
- DOM implementation: add methods getClassList and getElementsByClassName to 
  HTMLElement, and the latter to HTMLDocument.
- DOM implementation: createDocument now returns HTMLDocument instead of 
  CSSDocument.
- DOM implementation: report the availability of new link or style elements 
  when added to an element.
- DOM implementation: set an empty user agent style sheet instead of just 
  loading the HTML5 one, if the default has not been loaded explicitly.
- Avoid an index out of bounds exception when retrieving items from a value 
  list.
- Fixed an index out of bounds exception when parsing a multiple transition 
  shorthand property.
- Avoid a charset error when retrieving an URL.
- Catch Batik's ParseException when parsing sheets, by catching any
  RuntimeException.
- Support rect() value syntax without commas.
- Check for the form owner when matching the 'default' pseudo-class.
- Safer handling of the has() pseudo-class.
- Slightly more efficient handling of pseudo-classes in SelectorMatcher.
- Remove unsupported code from SelectorMatcher.
- More meaningful error logging when parsing remote style sheets.
- Add methods logSacErrors() and logSacWarnings() to DefaultSheetErrorHandler.
- Set a default connection timeout of 100 seconds to AbstractUserAgent.
- DOMCSSStyleSheetFactory's agent now accepts a DocumentBuilder to be used in 
  the readURL(URL) method.
- Alphabetically reorder the unit tests in AllTests.


 * Dom4j module:
- Adapt to core changes.
- Order tests in AllTestsDOM4J.


Version 0.34
------------
 * Core:
- Get rid of ExtendedCSSFontFaceRule interface.
- Get rid of getOwnerXPath()/getParentXPath() as they were not being used for 
  anything.
- Remove DocumentCSSStyleSheet.getComputedStyle(CSSElement, String, 
  List<String>), and use instead CSSCanvas.isActivePseudoClass(CSSElement,
  String) to find active state pseudo-classes.
- DOM implementation: implement ParentNode's attribute getters in HTMLElement, 
  HTMLDocument and DocumentFragment: getChildren(), getFirstElementChild(), 
  getLastElementChild() and getChildElementCount().
- DOM implementation: add querySelectorAll(String) to ParentNode.
- Pseudo-element support for both Batik's and Steadystate cssparser SAC 
  implementations.
- Add matches(String), matches(SelectorList) and getSelectorMatcher() (which 
  returns the now-interface SelectorMatcher) to CSSElement.
- Provide getCssText() for font-face rules with 'format' hint.
- Support for subsequent sibling selectors (SS parser only).
- Initial infrastructure for @supports rules.
- Temptative support for calc() values.
- Instantiate SAC parser through a java.security.AccessController, and throw a 
  DOMException.INVALID_ACCESS_ERR instead of a NOT_SUPPORTED_ERR if not possible.
- String values: process an escaped code point according to 
  https://drafts.csswg.org/css-syntax/#consume-escaped-code-point
- Add inheritance metadata for text-emphasis-* and other text-related 
  properties.
- Fix a NPE introduced in 0.33 when parsing the 'transition' shorthand. The fix
  shipped in that version was applied to the wrong if() block.
- Use steadystate SAC parser to run a number of tests.
- Give the bad identifier when throwing a DOMException for an invalid 
  identifier.
- Updated javadoc package overview.

 * Dom4j module:
- Conform to modifications in core.
- Get rid of ExtendedCSSFontFaceRule interface in dom4j backend.
- Get rid of getOwnerXPath()/getParentXPath() in dom4j backend.
- Updated javadoc package overview.

 * Java2d module:
- Get rid of ExtendedCSSFontFaceRule interface in this backend.

 * Visual module:
- Get rid of ExtendedCSSFontFaceRule interface in this backend.


Version 0.32
------------
 * Core:
- LENIENT mode was not working.
- DOM implementation: html-style namespace support.
- DOM implementation: several spec compliance corrections.
- DOM implementation: fix for compareDocumentPosition().
- DOM implementation: allow appending a <link> element to an element that is 
  not <head> nor <noscript>, if an allowed attribute is present.
- DOM implementation: allow <style> elements in flow content, following W3C's 
  change https://github.com/w3c/html/pull/843
- DOM implementation: add the getStartTag() convenience method to HTMLElement.
- More reliable getBaseURL() computation in StylableDocumentWrapper and DOM 
  implementation.
- DOM wrapper: make <link> element more tolerant to lack of 'type' attribute, 
  and ignore link if alternate stylesheet has no title.
- Remove an unneeded setOwnerNode() in StylableDocumentWrapper.
- Remove 1e-4 alpha channel tolerance in RGBColor implementation's equals 
  method.
- Add the BaseCSSStyleDeclaration.diff(BaseCSSStyleDeclaration) method.
- Fix a potential NPE in style sheets when css parsing problems are found.
- Avoid a possible NPE when parsing the 'background' shorthand.
- Avoid a circular dependency in the equals() method for rect values.
- CSS functions: support the old argument format without commas.
- Fix a potential NPE when handling direct adjacent selectors.
- Avoid a class cast exception when explicitly inheriting up to a system-default
  color value.
- Fix a few unescape text errors when setting string property values.
- Catch (unlikely) runtime exceptions produced when unescaping text in a css
  string value.
- Import rules: behave more as described by the draft spec if the import fails. 
  See https://drafts.csswg.org/cssom/#the-cssimportrule-interface
- Elements implementing the LinkStyle interface: getSheet() returns null only 
  if there is no associated CSS style sheet.
- Better implementation for SelectorMatcher.isFirstChild().
- Remove deprecated method loadXHTMLDefaultSheet() from style sheet factories.
- StyleSheetList implementation: add a remove(StyleSheet) method needed by the 
  DOM4J backend.
- Add the reloadStyleState() method to CSSCanvas.
- Support for these pseudo-classes: last-child, only-child, first-of-type,
  last-of-type, only-of-type, nth-child, nth-last-child, nth-of-type,
  nth-last-of-type, link, visited, target, root, empty and blank. Currently
  only the Steadystate SAC parser supports the functional syntax of the nth-*
  pseudo-classes.
- Formal support for state pseudo-classes like 'hover' through the new
  getComputedStyle(CSSElement, String, List<String>) method in interface
  DocumentCSSStyleSheet.
- Reduced the visibility of some SelectorMatcher methods.
- Code formatting and other minor changes.
- Add a comment to sample XHTML used for testing.

 * Dom4j module:
- LENIENT mode was not working, and general cleanup.
- Make <link> element more tolerant to lack of 'type' attribute, and ignore 
  link if alternate stylesheet has no title.
- Account for <style> elements descending from non-<head> elements, as per 
  W3C's change https://github.com/w3c/html/pull/843
- Elements implementing the LinkStyle interface: getSheet() returns null only 
  if there is no associated CSS style sheet.
- DOM4J user agent: do not overwrite base url if set in the document.
- Fix an index out of bounds exception waiting to happen when handling direct 
  adjacent selectors.
- Fix a selector NPE caused by getParent() returning null for root element.
- Fix a style sheet accounting bug triggered by changing the attributes of a 
  <style> element.
- Compress white spaces in DOM4JCSSStyleDeclaration.getText() and remove a TODO 
  task mark.
- Reduced the visibility of some DOM4JSelectorMatcher methods.
- Support new pseudo-classes in core.
- Adapt to other changes in core.
- Code formatting.

 * Java2d module:
- Add a prototype for Java2DUserAgent class.