code refactoring
Making changes compatible to v1
adding example app
simplifying public api
disable debug output
rename lifecycle methods to correspond activity and fragment lifecycle
Merge pull request #9 from wf2030/master

create gradle build scripts
use latest build tools v 21.1
support background dispatching and posting from background thread
generalizing create() and from() methods and deprecating BusDepot
updating demo app and making event receiver weak referenced
recycle tasks after they are processed by background dispatcher
more junit tests
code optimization
multiple code optimizations
Update README.md
Update README.md
Update README.md
revert back to version 1
create gradle build scripts