Put Map and Video modal into partial view

- Added three new fields, video, live_video and code
  Now the app can serve external videos and repo code
- The video view respects the responsive desing
Merge branch 'develop' of github.com:guluc3m/gul-gultalks into develop
Put Event status tags into partial
Remove unused routes
Fixed small notifier issues, added missing locales to the "propose_speaker" views