refactor out json parser so customers can swap in their own json parsers
Merge branch 'master' of github.com:box/box-android-sdk-v2 into sdkparser
address cr comments
update the way OAuth is set on client to make sure porper client component(e.g. JSON parser) can be set on caller, regardless of the client used in OAuthActivity
readme update
update javadoc
added oauth refresh listener in sample app
Merge pull request #17 from box/sdkparser

refactor out json parser so customers can swap in their own json parsers