Updated DingoAPI to .7

Rename component.component to component_id with relationship name change

Rename more instances of parent to component

Working on Incident Repository

Fix Incident seeder

component_id is fillable within the model

Fix bad relationship

Finished Incident repository

Added Metric repository

Updated tests for new dingo release
Merge pull request #62 from cachethq/repo_pattern

Updated DingoAPI to .7