require cl on compilation. this fixes decf undefined runtime error when compiled
replace old cl with modern cl-lib
Merge pull request #7 from yukihr/fix-decf-undefined

use cl-lib instead of cl
Use remote branch name if one exists, otherwise fall back to master
Merge pull request #11 from osener/use-remote-branch

Use remote branch name if one exists, otherwise fall back to master

Fixes #10
Bump to 0.4.0
Update contributors