Added methods to interact with the remote refspecs
Fix PEP-7
Use unicode for python v3 support
Removed reduntant returns, fixs PEP7
Fix documentation
Refactor getters to become methods
Fix methods signature
Provide minimal diff option
Update with master
Remove trailing whitespace
Fixed some error exceptions, docs
Merge cleanup
Fix last minute typo
Merge remote-tracking branch 'jplana/change_refspec_api'
PEP-7: function name in column 1

http://www.python.org/dev/peps/pep-0007/#code-lay-out
Python API already sets exceptions on error
implementing merge with default options
implementing merge with default options
implementing merge with default options - new test
implementing merge with default options - minor change