Merge pull request #4 from jshvarts/extfun

use method ref instead of lambda

make adapter immutable, add ext fun

utilize stdlib with

add tools ignore GoogleAppIndexingWarning

add MvpPresenter to avoid dup code in presenter implementations

reuse note id key constant

use lazy property to inject once only

do not re-inject dependencies on config change

remove unused view provides

clear Rx Disposables in onDestroy()

use onContextAvailable() lifecycle method

include article url in readme

remove PowerMock

test disposables.add() in presenters