Fix some Java project facets. Restore the project set's.
Fix Java facet
Fix to libs.j2ee project so that all associated libraries are correctly
exported
Remove some folders from classpath to avoid build issues
Merge pull request #968 from marioduarte/wikiservice3

Created java wikis service. Added first unit tests.
reverted sources
Created wiki service. Added new xml/atom serialization classes.
Added first unit tests to the wiki service. Fixed small issues in the
wiki service. Added missing methods.
merging recent commits from Mario
deambiguated constructors
fixed data resolution
Merge pull request #969 from LorenzoBoccaccia/fix-commits

Port of lost changes
Remove .apt_generated and fix Java compiler levels
Added unit tests to the wiki service. Made small fixes.
Merge branch 'master' of github.com:OpenNTF/SocialSDK into wikiservice3
Removed method getTags.