Merge pull request #50 from coolo/master

workaround to fix update
deprecate maintainer file
adapt Rakefile to submit to correct build service project in maintenance branch SLE-12-GA
Revert "adapt Rakefile to submit to correct build service project in maintenance branch SLE-12-GA"

This reverts commit 04ec4bb8d89bed5fe26346bdf453dd0de863865d.
revert the "look good on black" change for openSUSE icewm