434505 Allow property files on start.jar command line
Signed-off-by: Tom Zeller<tzeller@dragonacea.biz>

(cherry picked from commit d621df3c3482cccb1153a85936a8d80eedc0a032)

Conflicts:
	jetty-start/src/main/java/org/eclipse/jetty/start/FS.java
	jetty-start/src/main/java/org/eclipse/jetty/start/StartArgs.java