feat(meetings): add meetings topic to past meetings
fix(meetings): remove speaker text in past meeting
updt(bpmnexamples): add new navigation style
fix(renderer): fix diagrams in accordion

I needed a workaround because of the calculation in raphaelJS.
There should be a better way to do that.

Closes: #CAM-1377
Merge branch 'master' of github.com:camunda/camunda.org
fix(typical users): remove / in anchor
feat(social media): add new social media buttons

add new social media buttons and change the old
to the new design. Also change the fork-me-ribbon
to "we are hiring"

Closes: #CAM-1407
fix(docpad): fix config
fix(docpad): update to new docpad version
feat(social media links): add tooltip on mouseover

Closes: #CAM-1413
feat(modal): change size of box

-- no need of a new lightbox :-) We changed the size of the modal box

Closes: #CAM-1413
fix(bootstrap lightbox) add files
fix(bootstrap lightbox): remove files