management ports in 7.1 as using properties causing automatic detection to fail

Seems CR1 made the following changes:

< <socket-binding name="management-native" interface="management" port="${jboss.management.native.port:9999}"/>
< <socket-binding name="management-http" interface="management" port="${jboss.management.http.port:9990}"/>
—
> <socket-binding name="management-native" interface="management" port="9999"/>
> <socket-binding name="management-http" interface="management" port="9990"/>

Two things should happen:
1) we should handle this style
2) we should fallback to default if we can't parse the file instead of creating a "broken" editor.
Should add warning about it not being detected, just doing default.