update zimbra app script, fix zimbra application graphs, fix app system name display

git-svn-id: http://observium.org/svn/observer/trunk@4387 61d68cd4-352d-0410-923a-c4978735b2b8
change ipmi password field to password type

git-svn-id: http://observium.org/svn/observer/trunk@4388 61d68cd4-352d-0410-923a-c4978735b2b8
add asset tag support (via unix agent only for now) - fill  in OS poller if you have other devices exposing this

git-svn-id: http://observium.org/svn/observer/trunk@4389 61d68cd4-352d-0410-923a-c4978735b2b8
add info on top of global config page

git-svn-id: http://observium.org/svn/observer/trunk@4390 61d68cd4-352d-0410-923a-c4978735b2b8