Netty version bump: 4.0.10
Replace scopes with an immutable attribute map.
Move to top level to reduce import tax.
Method is case-sensitive.
Simplify build.
Oops.
Remove shapeless dep and move helpers to Responder class instead of package object.
fixed some response header bugs.
Stylistic changes

You find a new scala method every day it seems...
Enable ScalaMeter for testing.
Alphabetize dependencies in a fit of OCD.
Any is not a method!
Safe implies idempotent.
Simplify method registry.
Clean up namespace by moving extractor DSL to own package.
Merge remote-tracking branch 'origin/develop' into develop

Conflicts:
	core/core.sbt
Possible HttpHeaders performance bump
Now use List instead of sequence for faster appending.
Convert to Joda Time.
Remove HttpIp type.
Finish removing RemoteAddress.