- keep contacts status for session resume if resume is possible
	- reset status only if resume failed

	- fixed aes decryption ( fixes #529 )

	- fixed memory leak on message decryption

	- fixed hmac_sha256 (used openssl based instead of broken internal implementation)
	- utf8 related fixes

	use c++ types

	updated libsignal-c
protocols:
	jabber:	omemo:
		used 31bit device id instead of 32bit (32bit conflicts with conversations, not xep compliant)