git rebase fails when remote branch diverges

See #76, release log:

• 8406267: #76 typo
• 99a7515: #76 exit if git is too old
• ce18a66: #76 deb path fixed
• cdfb7ee: #76 ls
• 082197c: #76 env
• c8137ca: #76 ls
• ec2804e: #76 Exec with safe flags
• a7fb7a5: #76 Aptfile
• fd5703f: #76 -d
• ff8b99d: #76 update first
• 00251b0: #76 typo
• 84aded7: #76 typo
• 9629410: #76 APT_OPTS
• 9b4762a: #76 -x -e
• 4da1b14: #76 header
• c693cc1: compile
• 42330eb: #76 disable apt-get
• 781067f: #76 ping
• c72a6a5: #76 apt-get install software-p...
• 595312a: #76 ping
• and 27 more...

Released by Rultor 1.62.3, see build log