Merge branch 'master' of https://github.com/l1ll1/cvl-ssh-utils
Merge branch 'master' of github.com:CVL-dev/cvl-ssh-utils
Added some logger debug messages to KeyDist's clean-up for
when passwords are being used (with a temporary key).
Fixed CVLFAB-730. (Issue where Launcher failed to remove temporary key
from agent.)

KeyModel's removeKeyFromAgent was looking in "ssh-add -l" for a key with "Launcher" in the
key's filename, but the temporary key didn't have Launcher in its
filename.  I have fixed this by adding prefix="MassiveLauncherKey_" to
the temporary key generation.

I also put double quotes around the key comment, because now it can
contain spaces.

Added some debug logging.