Add d3js - area chart
Refactor d3js - index
Add d3js Elements
Add prism Element
Disable and remove MenuBuilder plugin
Update d3js - simple bar chart with Elements
Update d3js - simple bar chart v2 with Elements
Update d3js - simple bar chart v3 with Elements
Update d3js - area chart with Elements
Update d3js - index
Update 'raw' layout for d3js visualizations with Elements
Refactor $element_variables into Pages controller