added meetmantra's logo to source images about and added them to users.yml
Merge pull request #879 from twokul/master

typo in writing helpers
autolink in API docs
Merge pull request #880 from goshakkk/autolink-api-docs

Autolink in API docs
Add Runtastic to users list.
Merge branch 'pr/817'

Conflicts:
	data/users.yml
Merge branch 'pr/857'

Conflicts:
	data/users.yml
Merge branch 'master' of https://github.com/emberjs/website