Clone performance slightly improved
Command line support for custom checkin notes
Fix simple compiler warnings
:lipstick:

* Expand an abbreviation
* Explain why we have a method that just calls its base method.
Merge pull request #521 from kgybels/fix_warnings

Fix simple compiler warnings
Merge pull request #520 from kgybels/custom_checkin_notes

Command line support for custom checkin notes
Merge remote-tracking branch 'origin/master' into p518

Conflicts:
	GitTfs/Core/TfsChangeset.cs

Other merge fixes:
	GitTfs/Core/GitObject.cs
	GitTfs/Util/ChangeSieve.cs
	GitTfsTest/Core/ChangeSieveTest.cs
Merge pull request #518 from KindDragon/clone-performance

Clone performance slightly improved.
Add merged branches to the release notes.
one more.