Merge pull request #196 from 18F/feature/search_functionality

Feature/search functionality
fixed tags
Merge pull request #197 from 18F/feature/fix_search_tags

fixed tags
Fixed tag links, spacing, search text, search box
Merge pull request #200 from 18F/feature/tag_links

Fixed tag links, spacing, search text, search box
Adds layout for 'no search results'. Fixes layout hover-focus search box wonkiness.
Fixes too-light placeholder text in search boxes.
No results panel hides and show.Title attr for tags