Start app on system launch, NotificationsService that will keep app running in background, special connection to receive update only about new messages, option to disable NotificationsService
Optimized battery consumption, fixed blurry photos on some devices, added option to auto download media only via WiFi, changed way of contacts changes monitoring

https://github.com/DrKLO/Telegram/pull/422
https://github.com/rubenlagus/Telegram/commit/d96ce3c140bd49c5c8c63cea2b
c9afad8a16b8bb
Merge branch 'dev' of https://github.com/DrKLO/Telegram

Conflicts:
	TMessagesProj/src/main/java/org/telegram/ui/SettingsActivity.java