Use inline defers for more readable code
Refactor mail processing routine
Implement processing skipped mail regularly
Add changes file
Merge remote-tracking branch 'chiiph/bug/process_skipped_mail' into develop
Fold in changes
Merge branch 'release-0.3.4'
Merge tag '0.3.4' into debian-0.3.4

Tag leap.mx version 0.3.4

Conflicts:
	src/leap/mx/mail_receiver.py
update changelog to 0.3.4
freeze debian version