Link screenshot to intro video
Use markdown for link

Suggested by slang800
Use Gravatars. Fixes #127
Merge pull request #159 from begriffs/screenshot_link

Link screenshot to intro video
Merge pull request #161 from dlam/master

Use Gravatars. Fixes #127
Log boxes styling (round gravatar icons)

Change-Id: Ib0a9767c04b2f861bcfe4c8b36edab1789717c9c
Hide default gravatar

Change-Id: Idd3e1ca5e81b485d33fa32192afe176769c1537b
Merge remote-tracking branch 'upstream/master'