add get_head method to Module class
log module HEAD when pulling
Merge pull request #3 from code-sur/show_rev_when_pulling-try2

Show rev when pulling
Leftover
Revert "Leftover"

This reverts commit 041c6ba4cd53e98c4504edde920d14b22304fd63.
Add support for passing karma browser name
Use global bin_dir
Revert "Use global bin_dir"

This reverts commit 747e8ef80b22b06912828cf3eb91c8b103456274.
Fix setting up karma browser path
Revert "Fix setting up karma browser path"

This reverts commit 0b3322197b7d0cf02ba10711fdf87544a67dd74f.
Revert "Add support for passing karma browser name"

This reverts commit 5fbe869946b58b6f341df6dbcc5197eba2f89e21.