faster code (by caching regex in object)
Create parseTime.en.js as example for other languages
Add pt(-br) lang support

Maybe some terms are duplicated because in english some terms are used
in different ways according the hour in the day and when you come or
go (like "evening"), what not happens in pt(-br).
Merge pull request #16 from tarciozemel/master

Add pt(-br) lang support
grunt with portuguese