don't hardcode sles workflow
only wait for linux login on "desktop" textmode
tidy up
increase timeout for SLE media check
use new API function to avoid one check_screen per pattern
Merge pull request #197 from os-autoinst/issue_5482

use new API function to avoid one check_screen per pattern
add YAST_SW_NO_SUMMARY var if it's upgrade tests
Merge pull request #198 from os-autoinst/action_5540

add YAST_SW_NO_SUMMARY var if it's upgrade tests
fix perl syntax
Merge remote-tracking branch 'origin/master' into sle11