Twit 02 Retrieve user twitter home stream

Creates a generic parser and requester. Performing a request against the REST api now requires the correct pair. 

Example:
To request the twitter android dev stream, the request requires the TwitterObjectRequester (Twitter responds with a JsonObject) and the TweetsHashTagParser to parse the Json object.


convention-wise I meant, we use `onClick` rather than `onClicked` to match the `OnClickListener` (where it isn't `OnClickedListener`)