Revert "Don't retry ssh connection if authentication is cancelled."

This reverts commit fd587d439b3f63846c612d34440ee32db4b0cdae.
Revert "Original version 2.7.2"

This reverts commit eaee31636e59bea769981a2b3ba369b229e31280.

Conflicts:
	build.gradle
	src/main/java/com/glavsoft/rfb/client/KeyEventMessage.java