Completed the Marketing assets faceted search with ability to search on 2 or more marketing assets

TODO: When the submit button is refreshed the ticked check goes are not being remembered
Added hiding of Skills div and toggling of div when skills category selector is updated

Also the check boxes are unchecked every time the skills category selector is changed
Added the ability for skill category select to remember and have default state of selection when submit button is clicked
Got the Skills Categories search working with Marketing Assets

more testing required.
Merge branch 'search_filter' of https://github.com/miggitty/Experts into search_filter

Conflicts:
	app/controllers/experts_controller.rb
	app/models/user.rb