AdCreation service object

Sets status and notifies admin about new ad
- hooking up ads/show favorite
Merge branch 'dev' of github.com:cipele46/cipele46-web into dev

Conflicts:
	app/models/user.rb
	app/views/ads/show.html.erb
	config/routes.rb
top nav links mapping to routes
Merge branch 'dev' of github.com:cipele46/cipele46-web into dev
letter_opener gem added
content wrappers tweak in layouts
mailer view renamed
ad admin
move ADS_PER_PAGE away from home controller
Login view styling
Merge branch 'dev' of github.com:cipele46/cipele46-web into dev
User registration.
Revert "User registration."

This reverts commit 1b5a9ea89ed5793f391c8a5b62d37502e447788b.
Merge branch 'dev'