Fix for QueryHistory throws ItemNotFoundException
Add support for ExtendedMerge of type Undelete
Merge pull request #683 from honestegg/issue#682

Add support for ExtendedMerge of type Undelete
Updates to docs for branch command

Made a few readability, elaboration, typo and grammar fixes to the
branch command documentation
[doc]Keep changeset id
Branch doc: some other adjustments
Merge branch 'pr/684'
Prevent throwing of an Exception when reading missing git config key
Add test for #645.
Make Test happy
Merge pull request #693 from idealist1508/fix_tfs_clone_throws_Exception

fix for #645 - ItemNotFoundException
Update libgit2sharp to v0.20