stop get the output from rpm -qaV; clear the screen before run script_sudo()
default browser confiramation pop-up is gone, don't need confirm it
add a test script before partition setup tests, then LiveCD installation should running properly. also disabled 065_installer_timzone for LIVECD
installed yelp to read help document and fixed the key shortcut to open tutorial
Merge pull request #2 from nilxam/master

many test scripts fixes