[FIX] Verify GPGMail's bundle signature and abort to load if verification fails.

- Use SecStaticCodeCheckValidityWithErrors with kSecCSDefaultFlags flags,
  so that the verification makes sure that bundle contents have not changed,
  the main executable has not been tampered with and if other code within
  the bundle has also not been modified.
Well... the xcode project changes are also needed if this should work.
[FIX] Crash when creating a new key.
Bug when using Animation Layer.
Allow unsigned Code.
Code sign check
Version 1.1.1