Update Idea request specs

POST, PUT, PATCH, DELETE should be redirects. Change the expectations
to match this behavior.
Update Tag controller specs

Tags should be shown to users both registered and unregistered.
Add a test for the 'show' action ensuring the targeted Tag is the one
rendered in the view.
Update Votes controller specs

Exhaustively test the controller actions for handling Idea votes.
DRY Votes controller

Move Idea/Vote setting actions to 'before_actions' to DRY up the
controller.
Fix 'currents' comment references in Ideas controller spec
Update Comments controller specs

Fill out the missing test for the comments controller including comment
creation with invalid parameters. Specs should exhaustively check all
controller actions.
Update Comments controller

Add actions for editing, updating, and deleting comment records. Fill
in comments to clarify what routes are routing to the controller
actions.
Run rubocop's autocorrect against all models

Use rubocop's autocorrect feature to bring app in line with the Ruby
style guide. Chages are minor and should not affect the application,
only improve source readability.
Run rubocop's autocorrect against all controllers
Run rubocop's autocorrect against all helpers
Run rubocop's autocorrect against all configs
Run rubocop's autocorrect against all DB migrations
Run rubocop's autocorrect against all specs
Run rubocop's autocorrect against spec_helper
Run rubocop's autocorrect against DB schema