Release 6.0.0

• run "git log 5.0.0..HEAD" to see commits since last release
• new Android API (thanks to YellowLabrador!)
• new Windows UWP API support (thanks to Masamichi Hosoda!)
• various build system updates and code efficiencies

A distribution of the release with the configure script and documentation already generated is available at:

• http://www.music.mcgill.ca/~gary/rtmidi/release/rtmidi-6.0.0.tar.gz