1. Back to AppCompat library v.20 to be compatible with pre-material application projects
2. Back to 9 SDK version as minimum (none of included libs were requiring 10 for real)
3. Use of patched VK SDK library with ability to acquire email (included as aar-file)
4. Got rid of passing Fragment to constructors (passing Activity instead) to make ASNE fragment-independent and to be able to use it in several fragments without need to copy all code between fragments