Update README.md refering transifex localization platform

https://github.com/DrKLO/Telegram/pull/216
Bug fixes

Don’t want to lose app shortcut (who knew about it)

Thanks to:
https://github.com/DrKLO/Telegram/pull/218
https://github.com/DrKLO/Telegram/pull/267

Enable SQLite secure_delete pragma.

Applied patch from https://github.com/DrKLO/Telegram/pull/99 . Thanks.
Added German localization. Thanks to all from
https://github.com/DrKLO/Telegram/pull/129
Experimental audio (will not go to market yet, we will switch to opus
codec)
Improved text drawing perfomance (now Telegram can draw even «War and
Peace» in one message)
Ability to send multiple photos and documents from external apps
Contacts fixes
Memory usage optimizations in network code (receiving data)
Partly switched to native ByteBuffers (decoding received data)
Added support of Telegram API Layer 12
Bug fixes

Sorry, it shouldn't be there.

Ability to delete add rename contacts, proper handling of new contacts
in phone book
New photo crop
Ability to disable automatic photo download
Ability to disable notifications about new registered contacts
Updated Spanish localization
Bug fixes

Spanish localization by Borja Campina
Applied pull request by Yuri Orlov
(https://github.com/DrKLO/Telegram/pull/27)

add and config .gitignore

remove unused code

Added readme