Metadata system triggers a nil router error in api.rb with basic setup

[mikemattball]

When COLLECT_METADATA is added to the basic setup, it fails on the collect metadata prompt when "OK" is pressed.

I traced the problem to be at about line 588 of api.rb. This is dealing with routers. The call to get routers above it is not returning any routers because there are none defined in this basic setup. Then the call to write to the router fails and is trapped by the error handler, which reports the nil router issue.

The router write should be protected from when there are no routers configured.