Possible HttpHeaders performance bump
Now use List instead of sequence for faster appending.
Convert to Joda Time.
Remove HttpIp type.
Finish removing RemoteAddress.
Remove standard method and extension method distinction.
Strip commented code.  It's in git if we need it.
Refactor Method.
D'oh. Init registry before registering.
Convert to ScalaTest.
Remove underlying list from HttpHeaders.
Don't trust clients to notice 'inLowerCase' suffix on parameter name.
Merge branch 'develop' into topic/scalaz-task

Conflicts:
	core/src/main/scala/org/http4s/Method.scala
	core/src/main/scala/org/http4s/Response.scala
	core/src/main/scala/org/http4s/package.scala
	core/src/test/scala/org/http4s/BodyParserSpec.scala
	core/src/test/scala/org/http4s/MockServerSpec.scala
	core/src/test/scala/org/http4s/ResponderSpec.scala
	core/src/test/scala/org/http4s/WritableSpec.scala
	core/src/test/scala/org/http4s/util/middleware/MiddlewareSpec.scala