Fix for Android PRNG bug.

There is apparently an Android vulnerability with the PRNG it
provides through the JCE. This uses their suggested code to patch
the PRNG, and provides the option to regenerate identity keys.

http://android-developers.blogspot.com/2013/08/some-securerandom-thoughts.html
Updated language translations
Added bulgarian and greek
Bumping version to 1.0
Basic support for encrypted push-based attachments.

1) Move the attachment structures into the encrypted message body.

2) Encrypt attachments with symmetric keys transmitted in the
   encryptd attachment pointer structure.

3) Correctly handle asynchronous decryption and categorization of
   encrypted push messages.

TODO: Correct notification process and network/interruption
      retries.
Handle notifications and receiving push when locked.
Move classes into library
merge conflict
Merge remote-tracking branch 'm/push-library' into push-library