Added in search for competitions.
updated search results.
refactoring search results to be clear.
Undoing unnecessary changes.
Merge branch 'master' into clean_search
Only search published competitions and don't show search in production.
Merge pull request #340 from irjudson/clean_search

Search
Merge branch 'master' into dev
Improve appearance of MathJax equations and hide experiment feature by default.