v0.3.1

Changelog

ffac378 Merge branch 'master' of github.com:hhatto/gocloc
e418301 Merge pull request #29 from ebilling/master (Thanks @ebilling)
f250de8 Support file formats that do not support multi-line comments
7fe2158 add Dhall lang
bbea501 add Go Report badge
21ba4c7 add QML language
aaf8acb add Zig lang
8176427 add godoc link badge
d0ee276 seperate ts, TypeScript and XML(QtLinguist File)
af12f8b update packages
a79a466 update readme