New Version 0.7.2

- Fixed Bug: Got rid of major memory leak in Audio
- Fixed Bug: Left and Right didn't work in Control Units
- Fixed Bug: Sort by was broken
- Fixed Bug: Playing multiple songs was possible with Play in drop down
- Fixed Bug: Page Up and Page Down wrapped when they shouldnt
- Fixed Bug: Navigation error in menu on CUs
- Fixed Bug: Returning from Slide Show mode didn't turn off slide show mode
- Fixed Bug: Enqueue Menu didn't auto highlight Cancel button
- Fixed Bug: Enqueue Menu didn't disappear after it was done
- Fixed Bug: Returning to main screen didn't highlight any buttons
- Add the ability to dynamically make slide shows faster or slower with ff and rr buttons