fix string split, support regex
return a regexp if passed to RegExp(), added regression tests
Merge pull request #143 from yawnt/fix-string-split

fix string split, support regex
- Fixed typos in parser.d
- Minor style changes
Merge branch 'master' of github.com:maximecb/Higgs into dev-maxime
Conflicts:
	source/stdlib/string.js

- Added num call fast vs slow stat
- Fixed typos in parser.d
- Fixed irString bug