New photo viewer(close by swipe down, not tested on 2.x), optimize emoji load, fixed audio notes and typing in secret chats

https://github.com/DrKLO/Telegram/pull/443
Fixed image stuck after zoom end between max and min
Photo viewer bug fixes
New photo picker in chats
Merge remote-tracking branch 'remotes/upstream/dev' into dev

Conflicts:
	TMessagesProj/src/main/java/org/telegram/ui/ChatProfileActivity.java
	TMessagesProj/src/main/java/org/telegram/ui/UserProfileActivity.java
Fixed italian translation
Connections is no more scheduled every 500ms whene there is no network