add extra headers for compatibility
return proper update URL if $this->branch exists
return early for undefined index error
read and return 'Git(.*) Branch' header
spacing fixes
needed to set zip_url
get branch from local repo as default
minor doc fixes for get_local_branch
Merge pull request #1 from afragen/feature/branch

Feature/branch
Merge pull request #2 from leopuleo/master

Merged Afragen Develop