first draft of check_local_xivo_repositories

helper tool to make sure a local dev machine has a clone of all xivo
repositoriefirst draft of check_local_xivo_repositories.
Usage : check_local_xivo_repositories -d '/home/xivo_src'
working implementation of check_unmerged_branches and check_local_xivo_repositories
include remote branches in check_unmerged_branches
improve output in check_unmerged_branches
rename method in repo_check/check_unmerged_branches
add LICENSE, README and requirements to repo-check
add executables to bin folder in repo-check
add setup.py to repo-check
Merge branch 'technical-merge-assistant'
remove useless list
rename listdir to dir_list
use the super construct in the ReposNotFound exception
[] to yield in _find_repo_unmerged_branches
Merge branch 'technical-merge-assistant'