1. Implemented swap (test passes).
2. Implemented XOR list (test in progress passes).

git-svn-id: svn://graphite/telegraph/trunk/Telegraph@55 28fd7c2b-1a77-0410-894e-e36ff7e1493b
Basic unit tests all pass.

git-svn-id: svn://graphite/telegraph/trunk/Telegraph@56 28fd7c2b-1a77-0410-894e-e36ff7e1493b
Unit tests all pass.

git-svn-id: svn://graphite/telegraph/trunk/Telegraph@57 28fd7c2b-1a77-0410-894e-e36ff7e1493b
Added return of node pointer from insert, remove.

git-svn-id: svn://graphite/telegraph/trunk/Telegraph@58 28fd7c2b-1a77-0410-894e-e36ff7e1493b