Changes to set priority for params & show focus on input name in form.

- Changed code to not focus on method data code mirror textbox. Code mirror partial was set to always put focus on code mirror text box. When adding a new input parameter for a method, controller sends down JS command to focus on parameter name text field which was not working as when replacing the whole screen code mirror field focus was taking over.
- Added code to set a priority as last for newly added input parameters so they are displayed in same order as they were added on screen.
Fix a typo for event NETWORK_UPDATE_VM_INTERFACE in event_handling.tmpl.yml.
Merge pull request #1089 from lfu/typo_in_event_handling_yaml

Fix a typo for event NETWORK_UPDATE_VM_INTERFACE
Merge pull request #1072 from h-kataria/automate_method_editor_cleanup

Changes to set priority for params & show focus on input name in form..
Dialog seeding changes necessary for the service dialog yaml import.

https://bugzilla.redhat.com/show_bug.cgi?id=1163875

Productization requires service dialog import files to be linked into
the manageiq dialog import folder.
Changed dialog seeding to accommodate sub-directories and added tests.