Merge pull request #136 from reneme/cloud_testing

Test exclusions in final state + small fix in cloud_testing/run.sh
add missing execmod selinux exception
retrieve PID from util.cc:ManagedExec on demand
Merge branch 'master' of github.com:cvmfs/cvmfs
hand child PID through util.cc:ExecuteBinary on demand
wait 5 seconds for gdb to terminate, then finish it with the big hammer kill -9
adapt stacktrace testcases to wait long enough for the stacktrace creation
added note to ChangeLog
add new repositories to cvmfs-release package
Merge branch 'kill_gdb' of git://github.com/reneme/cvmfs into reneme-kill_gdb

Conflicts:
	ChangeLog
cosmetics
fix subtle bug in ManagedExec
update timeout
tweaking error reporting in cloud instance handler