Merge pull request #73 from ivantodorovich/master

Few minor changes
Merge pull request #74 from ivantodorovich/master

Fix and minor changes
Portuguese translation
Merge pull request #75 from brk00/master

Portuguese translation
Set node-webkit-builder dependency version
Bugfix (addclass instead of addClass)
Merge pull request #77 from ivantodorovich/bugfix

Bugfix (addclass instead of addClass)