Fix for other endpoints connected to via same logic

• Thanks to @fehnomenal for the fix!

Option to hide module from launcher

• Option to hide module from launcher (thanks to @Xhatry for recommending)
• Pretty icon, borrowed from com.balamurugan.pokemongojoystick ;)
• General cleanup

Settings UI and endpoint replacement

Android 4.1+ compatibility

• Use minimum API level 16 for people running patched app on 4.1+ (by @trisk)

First iteration, less bytes!

• Reduced apk sized to 220kb (thanks to @trisk)