Update README, doc generator and docs index
Fix incorrect reference on docs.
Rename convenience executors (remove "and" from signature)
Rename isSuccessfulResponse to hasSuccessfulResponse
Add JSON parsing support (work in progress)

* These additions will eventually be absorbed into `BBHTTPRequest` to give birth to a generic parsing facility
* Bumped project version to 0.9.1
Merge branch 'master' of github.com:brunodecarvalho/BBHotpotato

Conflicts:
	Classes/BBHTTPUtils.h