added post-handle hook
allow setting of default as-response function in resource
added fallback to as-response when there is no :as-response key set in resource
removed whitespace changes
Adds tests for custom as-response.
Simplifies lookup of as-response in resource
Updates changelog for :as-response #100
Merge branch 'silasdavis-post-handle-hook'. Fixes #100.

Conflicts:
	CHANGES.markdown