- rename parseElemList to parseElemSeq
- add alt(List[T]) combinator, to speed up choice among basic input (in the same spirit as seq)
- add error comment for alt combinator
- FastParser can now use string as input (supposed to improve performances..)
- modified repFold to not be a curried function anymore (caused bug with quasiquotes)
 - lay the foundations for better typing when this (http://stackoverflow.com/questions/22451272/unquote-applied-types-in-scala-macros) is solved
-add takeWhile combinator, to parse long sequence of input
- add repset combinator