Merge tag '2.9.0' into develop

2.9.0
starting 2.10.0
update docs
updating docs.
closes #24 _mtvnPlayerReady is an array of functions that fire when a player is ready.
closes #24 _mtvnPlayerAPIReady is an array of functions that fire when the api loads.
closes #25 calling playUri from the page instead of from inside the html5 player, so the ref isn't lost.
Merge tag '2.9.1' into develop
Merge tag '2.9.2' into develop
Merge branch 'release/2.10.0'