Pull updates to common/ files

• commit '7828e567':
• Update "common" subtree from correct branch
• Use sudo journalctl for non-privileged user in AA tests
• Allow running run-aa-test outside testdir
• Remove --no-lava flag from the tests
• Allow to use libraries
• Add a variable specifying arch-specific folder
• README: Describe usage of common-subtree.sh
• Correct handling of missing .bash_history
• Replace aa_log_extract_tokens.pl
• Simplify by using csplit and not looking in old locations for scripts
• Tweak to use journal rather than audit.log
• Add run-aa-test and aa_log_extract_tokens.pl
• Fix unitialized variable in test path