TradMusician's ABC music

Feb 2, 2017

- Fix encoding used when loading notation from cache (Thanks Robby Gurk) - - - Fix library refresh upon indexing (Thanks Christian)
- Regression fixed: Switch Notation/ABC not working for certain files (Thanks Christian)
- Fixed bug: Notation was sometimes not displayed on Android 4 devices (Thanks Bob Safranek)
- fixed bug: instrument midi selection was not working (Thanks Gary Morris)
- can now favorite a tune opened from a file if the file is indexed in the library (Thanks Bryn Sowash)