simplify colorized logging setup

This makes setup_colorized_logging be a thing which takes a single
parameter and doesn't let projects do things differently. It also
changes the order of values from user / project to project / user to
represent the hierachy more clearly.

Change-Id: I8c0ba7da54be588e3e068734feb4f78ed7c5a14a
diff --git a/lib/keystone b/lib/keystone
index 34730b8..474af8b 100644
--- a/lib/keystone
+++ b/lib/keystone
@@ -284,7 +284,7 @@
 
     # Format logging
     if [ "$LOG_COLOR" == "True" ] && [ "$SYSLOG" == "False" ] && [ "$KEYSTONE_DEPLOY" != "mod_wsgi" ] ; then
-        setup_colorized_logging $KEYSTONE_CONF DEFAULT
+        setup_colorized_logging $KEYSTONE_CONF
     fi
 
     iniset $KEYSTONE_CONF DEFAULT debug $ENABLE_DEBUG_LOG_LEVEL