Document bzr,git,hg,svn as a go system dependencies.
Merge pull request #7 from mtahmed/master

Document bzr as a build dependency in README.md
Add a Bitdeli badge to README
Merge pull request #8 from bitdeli-chef/master

Add a Bitdeli Badge to README
Update README.md
Corrected some English errors from Hacker News comments
Merge pull request #11 from nMustaki/english_corrections

Corrected some English errors from Hacker News comments
documentation improvements
Merge pull request #16 from makuk66/master

documentation improvements
Merge branch 'master' into develop