move CLONE_NEWUTS to extended unshare options [BZ# 890695]
    
    - make epel-5-* config files safe to eval [BZ# 903686]
    - remove CLONE_NEWPID (for now) from unshare(2) call [BZ# 894623]
    - initialize package_state_opts so that package_state plugin will work
    - change default tests environment to be -i386
    - From Tim Woods <timw.fedora@gmail.com>
      - Fix mockchain repo id calculation [BZ# 880849]
    - From Tzafrir Cohen <tzafrir.cohen@xorcom.com>
      - Fix most bashism in test scripts