-Deleting more than one sentence at a time no longer breaks the editor
(not fully fixed yet, just prevents the error).
Pre-merge commit
Merge remote-tracking branch 'origin/anonymouth_master' into
Marc_Anonymouth

Conflicts:
	src/edu/drexel/psal/anonymouth/gooie/BackendInterface.java
-User can delete multiple sentences no matter what the selection indices
are (however, end of the document deletions may still need debugging).

-Fix for bug where EOS characters would not properly be backed up in
VersionControl and would break the editor if the user had deleted an EOS
character and attempted to "Undo".
Backup for branch switch
-Fix for minor highlighting bug where highlighting may be off for
sentences following new lines.
Backup before deleting location copy (to fix odd git/eclipse issue)
-User can now add documents that have the same title in Anonymouth
without it breaking the ClusterAnalyzer.
Cleaned up all of engine, fixed issue in backendinterface, merged
pretargetselectionprocessing with post, (still need to change name).
Merge remote-tracking branch 'origin/Marc_Anonymouth' into
andrew_dev_anonymouth

Conflicts:
	src/edu/drexel/psal/anonymouth/engine/ClusterAnalyzer.java
	src/edu/drexel/psal/anonymouth/engine/DataAnalyzer.java
	src/edu/drexel/psal/anonymouth/gooie/AnonymityDrawingPanel.java
	src/edu/drexel/psal/anonymouth/gooie/BackendInterface.java