ticket:318 added batch search page
ticket:318 added batch search form
ticket:319 get list of ids from form for batch search
ticket:319 batch search, message as a result of search
ticket:323 not clear form if errors, redirect to cart page if all found, ask if not all found
ticket:323 merged master, fixed conflicts
ticket:323 added data validation in BatchSearchForm, added test for it
ticket:323 fixed view, added test
ticket:323 handling situations when few files were not found
Merge branch 't323_batch_search_add_to_cart'
ticket:323 minified css