<1.2 RHN install> define jboss priorities to be consistent
<Installer> Update RHN install to use JBoss EWS 2 channel instead of EWS 1
Merge pull request #34 from detiber/fixRHNjbEWS

<Installer> Update RHN install to use JBoss EWS 2 channel instead of EWS...
configure_pam_on_node: Drop user_list loop

Drop the loop that constructs $user_list, and just use root,adm for the
polyinstantiation blacklist for /tmp and /dev/shm.

Add coments to the relevant code.