- Modify get_branches and get_branch_names so that it can handle branch name with space. For example: 'Foo Bar'
- Modify get_branches to take an optional argument that would return active branches only
add docstring for get_active_only
Removed Get Active only. Added unittest
fix pep8 issues
Merged in andy_tang/hgapi (pull request #18)

Updated get_branches and get_branch_names to handle branch name with spaces