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 'upstream/master'