[flickrj] get oauth token using flickrj-android.

api_key and api_secret must be written in file "res/raw/keys.txt".
can't get the callback uri to work, yet.
[flickrj] oauth callback redirect back to app.

But currently it's an oauth -> callback -> oauth loop.
Should solve it in onResume.
[oauth] successfully get access token.

Next we need to know how to save and load the token.
[design] try to add a Service as the overall controller.

Half way to it.
[jason-test] add a grid view page
try to get buddy icon url