Fix frontend collector DN
Fixes for glexec and user cert generation
Add default GLIDEIN_Job_Max_Time and GLIDEIN_Max_Walltime

The defaults are really screwy -- with a pilot proxy of 86400 they
refuse to start jobs (the retire time is 21600 but die_time is 129600).
Enable x509 proxy with test job
Move setup scripts into own files and link up RPM devel with git