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.


`MyStreamActivity` as in the user refers to it as "My [his/her] Stream"?

or `MyStreamActivity` as in `MyAdapter implements Adapter`?