Merge README.md

Merge the 2 pages to only have one place with all the information (and clearer!)
Provide only one README.md
add 'no-fetch' option on branch command, too
Add doc for --nofetch parameter
Add IgnoreRegex and ExceptRegex to branch command, too...
Added Rollback changetype to GetRelevantChangesetBasedOnChangeType
Merge pull request #404 from MrDoomBringer/master

Add Rollback changetype to GetRelevantChangesetBasedOnChangeType
Merge pull request #392 from pmiossec/branch_nofetch

add 'no-fetch' option on branch command, too
Update to point to releases page
change-history.md is no more needed
correct typo
Attempt #1 at a more sane use of workspaces.
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Make sure cleanup happens before GC starts throwing everything away.
Memoize it.
Explicitly clean up the things.
Stop making things up!
:musical_score: one of these things is not like the others
Merge pull request #414 from git-tfs/hire-a-janitor

Create and clean up workspaces only once per git-tfs run. Closes #315. Closes #405.
Disable git's pager.