Android M Runtime Permissions (info)

Great read:
http://inthecheesefactory.com/blog/things-you-need-to-know-about-android-m-permission-developer-edition/en

ADB commands
Android 6.0 Permissions:
Granting and revoking runtime permissions:
$adb shell pm grant/revoke my.package.name some.permission.NAME

Installing an app with all permissions granted:
$adb install -g my.package.name

Dumping app permission state:
$adb shell dumpsys package my.package.name

Show all Android permissions:
$adb shell pm list permissions -d -g