Add style when the user select a kiito to send
Handle kiitos selected form list

- Add indicator for selected kiito
- Fix and add styles for hover state
Merge branch 'master' into add_selected_kiitos_style

Conflicts:
	app/assets/stylesheets/kiitos/base/mixins.css.scss
	app/assets/stylesheets/kiitos/modules/user_dashboard.css.scss
Merge pull request #83 from crowdint/add_selected_kiitos_style

Add selected kiitos style