yarn-client addJar fix and misc other
add application type
Update based on review comments
Merge pull request #371 from tgravescs/yarn_client_addjar_misc_fixes

Yarn client addjar and misc fixes

Fix the addJar functionality in yarn-client mode, add support for the other options supported in yarn-standalone mode, set the application type on yarn in hadoop 2.X, add documentation, change heartbeat interval to be same code as the yarn-standalone so it doesn't take so long to get containers and exit.