Implement gt branch
[m] style
[+] test-suite test-gt-branch
Return branch name instead of ref name
[+] test if no branch
"detached HEAD" is valid state. Print "At no branch" instead of WAT
[m] garbage
unix package < 2.7 seems to be incompatible with base-4.7. Fix build
Merge remote-tracking branch 'origin/gt-branch'