Affects Version/s: None
Fix Version/s: None
Simplify the interface to clojure.contrib.http.agent as follows:
- Replace separate :on-success and :on-failure callbacks with single :handler callback.
- Shorten response-body-bytes/str names to "result" and "result-str."
- Shorten response-status/message/headers names to status/message/headers
- Provide accessors for request parameters such as URI, headers, body, etc.