* Removed addPtr.xsl and reduceFOTree.xsl
* Implemented Common Accessibility properties on objects that support them
* Added a special implementation of FOEventHandler to build the structure tree
* Added mockito library and its dependencies
* Added mocks for some FO nodes and properties
* Removed FOTreeUnitTester and converted it into a re-usable FODocumentParser class
* Re-worked table FO test cases accordingly


git-svn-id: https://svn.apache.org/repos/asf/xmlgraphics/fop/branches/Temp_ImproveAccessibility@1188205 13f79535-47bb-0310-9956-ffa450edef68

Renamed TransformerNodeEndProcessing into AccessibilityPreprocessor.
Renamed AccessibilityUtil into Accessibility and simplified the code.


git-svn-id: https://svn.apache.org/repos/asf/xmlgraphics/fop/branches/Temp_Accessibility@828090 13f79535-47bb-0310-9956-ffa450edef68

- String Constant for "accessibility"
- Removed unused constructors
- Remove unnecessary null-checks.

git-svn-id: https://svn.apache.org/repos/asf/xmlgraphics/fop/branches/Temp_Accessibility@765889 13f79535-47bb-0310-9956-ffa450edef68

Accessibility and Tagged PDF Support
Submitted by: Jost Klopfstein <jost.klopfstein.at.gmail.com>

Changes to patch by jeremias:
- Some style fixes
- Various simplifications
- Removal of dead code
- Addressed some issues raised in Bugzilla (work in progress)
- Fixed a couple of bugs on leader handling detected while testing (an NPE remains in leader_leader-pattern_use-content.xml)


git-svn-id: https://svn.apache.org/repos/asf/xmlgraphics/fop/branches/Temp_Accessibility@745949 13f79535-47bb-0310-9956-ffa450edef68