Recommendation Tracker Code

Check for null rule when returning column values.
In support of bug 3030126.

Moved translation of references in Profiles above Selections to prevent validation errors.

Moved translation of references and requires above rules and sub groups in Group. The wrong order caused validation errors.
Fix for bug 3029602.

+Made the code a little cleaner

+Deleted some old, no longer used classes I created

+Copying now seems to work, with window functioning properly and schema validating after copy is created

Check to see if referenced files exist. If not user is prompted to supply them.
Fix for bug 3020171.

+Merged trunk into my branch

Added cpe language 2.0 namespace. cpe dictionary 2.0 namespace was incorrectly being used for platform-specification.
Fix for bug 3011652.

+ Fixed a bug where adding an internal doc to a group didn't trigger the getChanged() flag
+ Made some optimizations for reference panels by eliminating multiple xPath selects