Make all TypedBuilders types extend UriConvertable
Merge branch 'master' of http://github.com/http4s/rho

Conflicts:
	core/src/main/scala/org/http4s/rho/RequestLineBuilder.scala
Move to http4s-0.3.0-SNAPSHOT

Builders extend UriConvertable
Conflicts:
	core/src/main/scala/org/http4s/rho/QueryBuilder.scala