Upgrade to commons-text 1.2

JAVA 9 SUPPORT
==============

At our time of release of 1.1, our build succeeds with Java 9-ea build 159,
and we believe all of our features to be Java 9 compatible. However, when we
run "mvn clean site" we have failures.

NEW FEATURES
=============

o TEXT-74:   StrSubstitutor: Ability to turn off substitution in values. Thanks to Ioannis Sermetziadis.
o TEXT-97:   RandomStringGenerator able to pass multiple ranges to .withinRange(). Thanks to Amey Jadiye.
o TEXT-89:   WordUtils.initials support for UTF-16 surrogate pairs. Thanks to Arun Vinud S S.
o TEXT-90:   Add CharacterPredicates for ASCII letters (uppercase/lowercase) and arabic numerals.
o TEXT-85:   Added CaseUtils class with camel case conversion support. Thanks to Arun Vinud S S.
o TEXT-91:   RandomStringGenerator should be able to generate a String with a random length.
o TEXT-102:  Add StrLookup.resourceBundleLookup(ResourceBundle).

FIXED BUGS
==========

o TEXT-106:  Exception thrown in ExtendedMessageFormat using quotes with custom registry. Thanks to Benoit Moreau.
o TEXT-100:  StringEscapeUtils#UnEscapeJson doesn't recognize escape signs correctly. Thanks to Don Jeba.
o TEXT-105:  Typo in LongestCommonSubsequence#logestCommonSubsequence. Thanks to Abrasha.

CHANGES
=======

o TEXT-107:  Upversion commons-lang to 3.7.
o TEXT-98:   Deprecate isDelimiter and use HashSets for delimiter checks. Thanks to Arun Vinud S S.
o TEXT-88:   WordUtils should treat an empty delimiter array as no delimiters. Thanks to Amey Jadiye.
o TEXT-93:   Update RandomStringGenerator to accept a list of valid characters. Thanks to Amey Jadiye.
o TEXT-92:   Update commons-lang dependency to version 3.6.
o TEXT-83:   Document that commons-csv should be used in preference to CsvTranslators. Thanks to Amey Jadiye.
o TEXT-67:   NumericEntityUnescaper.options - fix TODO.
o TEXT-84: RandomStringGenerator claims to be immutable, but isn't.