Fix an error at /apps/show/:name?path=x

[matt257]

The route

app GET /apps/show/:name(/:type(/:owner))(.:format) apps#show {:type=>"sys"}

with a 'path' URL parameter causes an application error.

#<NoMethodError: undefined method `uri' for #<AppsController:0x0000000001f5e0>
Did you mean?  URI>
...

Example using 'myjobs':

https://ondemand-test.osc.edu/pun/sys/dashboard/apps/show/myjobs
redirects to
https://ondemand-test.osc.edu/pun/sys/myjobs without issues.

https://ondemand-test.osc.edu/pun/sys/dashboard/apps/show/myjobs?path=x
causes the above error.

I verified after the change dashboard/apps/show/myjobs?path=x redirects to /myjobs/x and displays the below instead of an error.

The page you were looking for doesn't exist.
You may have mistyped the address or the page may have moved.

If you are the application owner check the logs for more information.

[johrstrom]

Thanks!