- Fix for the calls being sorted in the wrong order

Updated app design:
 - brings up the last system you had open
 - adds a little more polish

We are back in the App Store!!

- Fixes a bug with the Talkgroups API that was preventing loading

- Progress slider is scrubbable, allowing you to rewind

- Fix bug where calls for some systems were not being listed
- Added a screen to pull up details about Calls

- Fix audio freezing when new calls are added
- Better organization and search for the System list

- Fixes autoplaying the next call
- Smoother scrolling when loading more calls