Wish Support for SHA256 & RSA sign keys

[daemon]

Please add support for SHA256 & RSA keys for easy migration from non-B4A to B4A.

References
http://www.b4x.com/android/forum/th...with-b4a-not-a-private-key.39735/#post-279648
http://www.b4x.com/android/forum/th...-apk-with-non-b4a-keystore.14049/#post-149549