G-Stomper update with fleshed out midi functions

From the G-Stomper website:

This new release brings Android M MIDI support to devices running on Android 6.0 and higher, including…

• USB Host (Android 3.1+): Connect USB MIDI equipment to G-Stomper
• BLE Host (Android 6.0+): Connect Bluetooth LE MIDI equipment to G-Stomper
• USB Peripheral (Android 6.0+): Connect G-Stomper as USB MIDI Peripheral/Extender to your host sequencer (PC, MAC, another Android/G-Stomper device, etc.)
• Experimental support for multiple concurrent MIDI Devices (Android 3.1+)

​The new Android M based MIDI driver is way more flexible, it’s faster, more precise and it’s using less CPU. As a matter of course, the old Android 3.1 based MIDI driver remains for devices running on older Android versions and for NON-class-compliant MIDI hardware (the Android M MIDI connectivity strictly supports class-compliant MIDI equipment).