Merge branch 'develop'

.lgtm.yml

.travis.yml

CODE_OF_CONDUCT.md

Dockerfile

HALL_OF_FAME.md

TROUBLESHOOTING.md

config/7ms.yml

config/bodgeit.yml

config/default.yml

config/fbctf.yml

config/mozilla.yml

config/sickshop.yml

data/datacreator.js

data/static/challenges.yml

data/static/users.yml

frontend/package.json

frontend/src/app/about/about.component.html

frontend/src/app/about/about.component.ts

frontend/src/app/navbar/languages.ts

frontend/src/assets/i18n/bg_BG.json