Re-styles search bar and positioned contribute button
Merge remote-tracking branch 'upstream/master'

* upstream/master:
  re remove gemfile.lock
  add gemfile.lock for heroku push
Revert "re remove gemfile.lock"

This reverts commit 8c83d8930e4eece628e74abc3931855f85066dab.
Revert "add gemfile.lock for heroku push"

This reverts commit 91a8e0e0d795fe8bdb6f9289bef18236c2769d25.