Update routes and controller

* Add edit, update, and destroy
* Move finding of @survey to separate method
Add ability to edit
Piece together dashboard

* Get user surveys for index
* Create partial to show all important information for survey
* Add name, link, edit, and delete to partial
* Render partial in index
* Move new survey link in index
Refactor surveys

* Remove instance variable and move logic to index
* Replace delete with destroy
Merge pull request #6 from CHJ-Metis/ha-dashboard

Create dashboard

* Allow editing and deleting of surveys