Added missing route.

Added missing route to routes and spec test. DRYed up the spec test. Removed dialog_res_reorder route from list of GET routes

https://bugzilla.redhat.com/show_bug.cgi?id=1154806
https://bugzilla.redhat.com/show_bug.cgi?id=1154860
Merge pull request #893 from h-kataria/added_dialog_res_reorder_missing_route

Added missing route.