Add TraversableOnceW
Add Http{Request,Response}Header
Add Http{Request,Response}HeaderParser
Add collection.ToBytesable
Add addTraversableOnce(builder[,sep])
Modify Http Header elems to implement ToBytesable
Format HttpHeaderParser.scala
Use MessageHeaderMap and not List[MessageHeader]
Merge branch '#7' into 0.0.x - for some work
Bump version number to 0.0.5
Bump version number to 0.0.6-SNAPSHOT