Merge pull request #65 from ruanltbg/pt-br

nth-child-selector, event.timeStamp, event.type, event.which, $.unique
Tradução da propriedade length
Tradução da propriedade support
Merge pull request #70 from bargaorobalo/pt-br

support / length
Merge branch 'pt-br' of https://github.com/jquery-br/jqapi-br into pt-br