Don’t process files without requires
Merge pull request #25 from lautis/optimise-requireless

Don’t process files without requires
Bump version
Bump referenced Browserify version to 5.13
Update Browserify version in README to 6.3
Merge pull request #26 from gabrielecirulli/master

Bump referenced Browserify version to 5.13
README: fix typo
Merge pull request #33 from eins78/patch-1

README: fix typo