add tool to easy create maintenance branch in git
release
more secure way to create branch based on latest upstream master
add check to not create such branch on forks
add nice header
Merge branch 'master' of github.com:yast/yast-devtools into create_maintenance_branch_script

Conflicts:
	package/yast2-devtools.changes
Merge pull request #58 from yast/create_maintenance_branch_script

Create maintenance branch script