Merge pull request #53 from Swatinem/master

Fixes #52: support multiple keywords
0.4.0
Swig support with trans/blocktrans helpers
Refactoring PR in order to make the change more generic
Fix weird swig dependency specification (npm install --save did it like this)
Fix parser, add test
Fix again dependency; weird that travis can't use it meanwhile it works on my machine
Remove console.log; handle keywords array
Merge pull request #54 from mila-labs/swig-support

Swig support for custom trans/blocktrans tags
0.4.1
Update acorn for https://github.com/marijnh/acorn/issues/85