Upgrade build to use the Maven Assembly plugin v2.2

Release Notes - Maven 2.x Assembly Plugin - Version 2.2 

** Bug 
     * [MASSEMBLY-94] - moduleSet/binaries doesn't work with 
assembly:single bound to the build lifecycle 
     * [MASSEMBLY-140] - Assembly descriptor docs are incorrect for 
dependencySets/dependencySet/excludes 
     * [MASSEMBLY-150] - Clarify or fix <file> relative scoping in 
assembly descriptor to be module centric or location of mvn execution 
     * [MASSEMBLY-151] - Documentation for the assembly plugin is 
utterly confusing 
     * [MASSEMBLY-157] - maven assembly  plugin, includes/excludes in 
moduleSet 
     * [MASSEMBLY-167] - Property Expansion/Filtering does not always 
work for System.properties 
     * [MASSEMBLY-171] - Fix / speedup integration tests 
     * [MASSEMBLY-185] - When using different parent and aggregator 
poms, the assembly plugin does not package the ModuleSets of the 
aggregator modules 
     * [MASSEMBLY-187] - Incorrect FileSet causes infinite loop 
     * [MASSEMBLY-202] - Silent failure: <outputFileNameMapping> 
declared with multiple includes 
     * [MASSEMBLY-206] - Filtering does not work when using in fileSet 
inside moduleSet 
     * [MASSEMBLY-220] - unpacked assemblies render different results 
when enumerating dependencies vs. using wildcards 
     * [MASSEMBLY-228] - UnpackOptions filtered does not work 
     * [MASSEMBLY-248] - version was null for junit:junit 
     * [MASSEMBLY-289] - Fix bogus warning about attaching non-regular file 
     * [MASSEMBLY-299] - assembly does not honnor <dependencyManagement> 
directives 
     * [MASSEMBLY-332] - MANIFEST.MF is not used when specified in 
configuration for a WAR format assembly 
     * [MASSEMBLY-333] - plugin not correctly interpolating POM 
variables like ${settings.localRepository} 
     * [MASSEMBLY-337] - dependencySet with unpack=true cannot be used 
to make file permissions executable 
     * [MASSEMBLY-346] - DependencySets Includes/Excludes Do Not Work 
Correctly And Type Is Ignored 
     * [MASSEMBLY-360] - When using mulitple Spring dependencies, the 
files from META-INF (from the Spring jars) overwrite each other in an 
executable jar-with-dependencies. 
     * [MASSEMBLY-367] - mvn assembly:assembly fails to replace 
${parent.parent.version} 
     * [MASSEMBLY-378] - Property expansion in assembly/component 
descriptors does not escape &, <, >, ", or ' 
     * [MASSEMBLY-392] - Big slowdown on Linux when upgrading assembly 
plugin from 2.2-beta-1 to 2.2-beta-3 
     * [MASSEMBLY-393] - Cannot Override dependencyManagement 
     * [MASSEMBLY-403] - No files is added for fileset 
     * [MASSEMBLY-420] - maven fails when packing parent pom 
     * [MASSEMBLY-423] - Specified file modes are used for all the 
following fileSets 
     * [MASSEMBLY-424] - poor performance of dependencySet in assembly 
descriptor (compared to using maven-dependency-plugin + fileSet) 
     * [MASSEMBLY-431] - missing files during installing when using goal 
assembly 
     * [MASSEMBLY-432] - assembly misapplies depMgt and selects the 
wrong dependency for an archive 
     * [MASSEMBLY-435] - DependencySet: outputDirectory expression using 
${artifact.baseVersion} uses equivalent of ${project.baseVersion} 
     * [MASSEMBLY-448] - Assembly plugin's dependency resolution for 
dependency sets is not inline with maven dependency resolution 
     * [MASSEMBLY-451] - unpackOptions: Documentation on 
maven.apache.org differs from "The definitive Guide", the latter is right 
     * [MASSEMBLY-455] - Incorrect documentation for Pre-defined 
Descriptor Files 
     * [MASSEMBLY-462] - Assembly contains temporary files ending in 
*.formatted. 
     * [MASSEMBLY-464] - assembly descriptor id should be mandatory 
     * [MASSEMBLY-469] - Version for artifacts in dependencies section 
are resolved wrong 
     * [MASSEMBLY-488] - restrict useStrictFiltering option to 
DependencySets 
     * [MASSEMBLY-490] - Assembly fails with 'Too many files' error when 
converting line endings. 
     * [MASSEMBLY-498] - Unable to get module properties 
     * [MASSEMBLY-499] - Poor performance in DirectoryArchiver due to 
unnecessary native calls 
     * [MASSEMBLY-507] - 2.2-beta-6-SNAPSHOT component annotations MAY 
not work with Maven 2.x 
     * [MASSEMBLY-509] - Hudson unable to build with version 2.2 

** Improvement 
     * [MASSEMBLY-66] - Ability to index into a nominated dependency JAR 
to identify files to include in the assembly (Im thinking .so/.dll etc) 
     * [MASSEMBLY-115] - Should avoid modifying assembly if none of the 
underlying files have changed. 
     * [MASSEMBLY-204] - Make a single goal (assembly:assembly) that 
covers all cases of assembly:attached, directory, ... 
     * [MASSEMBLY-209] - Service provider configuration files should be 
concatenated instead of overwritten 
     * [MASSEMBLY-229] - Documentation of fileMode could be improved to 
avoid user trip hazard 
     * [MASSEMBLY-263] - Include component location information 
     * [MASSEMBLY-272] - getDescriptor and getDescriptorId should be 
deprecated. 
     * [MASSEMBLY-307] - Better Validation of Assembly Descriptors 
     * [MASSEMBLY-486] - ComponentDescriptors to support absolute paths 
     * [MASSEMBLY-487] - Introduce ${artifact.properties} counterpart 
for ${project.properties} 

** New Feature 
     * [MASSEMBLY-501] - Define a method of using moduleSet/binaries 
from a child project to gain access to all modules in reactor