Added d3 and Rickshaw;
AMDfied the project
Added items related_names to Actual/BudgetItem
Moved the live-reload snippet to a separate script
Added a base.css
Basic Graph widget and RickshawGraph adapter implementations
Improvements to grid and row implementations
Added chart data handling
Moved base to lib;
Added adapters dir and shim config for Rickshaw
Improvements to spreadsheet and initial implementation of graph
Merge branch 'develop' of https://github.com/prjts/open-budget into develop