Bump version to 1.6
Bump version to 1.6

djh123/XposedAppSettings,Unpublished/XposedAppSettings,XiveZ/XposedAppSettings,Ni2014/XposedAppSettings,cooldroid/XposedAppSettings,rovo89/XposedAppSettings,xyzr0482/XposedAppSettings,Arnie97/XposedAppSettings,d8ahazard/XposedAppSettings