Logo and Back-ground image upload
Issue fix
Remove unneeded jquery.min
Fix isuue in availabilities_controller for checking staff_id
Add background color to modal
Issue fix for service#index json.  Issue fix for appointment edit.
Issue fix for appointment duration validation.
Add validation for staff name uniqueness.
Add logo and background to all layouts
Issue fix for new availability form
Add update functionality to images.
Issue fix
CR fixes for image-upload.
Merge pull request #10 from vinsol/image-upload

Image upload