Embeds opengraph data on badge pages.
Checks that opengraph and fb data is defined before trying to loop through it. Fixes bug and tests should now pass.
Removing old help tooltips
Add a head block and htmlPrefix variable to layout.html to keep things clean.
Merge pull request #620 from davelester/feature/opengraphdata

Embed opengraph data on individual badge pages
Moving fullUrl out to utils module
Merge pull request #641 from stenington/fullUrl-fix

Moving fullUrl out to utils module
Encorporating logo with hexagonal shadow and navbar border
Including logo with reduced logo text size
Restore development flag: stealing thimble ribbon but with SHA tooltip on hover
Bring the test ribbon to the front
Smooth edges in FF
Moving test ribbon style definition out of backpack.less
Merge pull request #629 from stenington/596-logo

Include logo
Merge pull request #630 from stenington/597-remove-help

Removing old help tooltips
First stab at sign-in page graphics and text
Sign in page tweaks from Jess' feedback
Added link without styling
Only show sign in link on sign in page, until we're on the Persona Observer API
Remove unused art [ci-skip]