Show exception details
Cleaned up Metafield serialization
Minor improvements
Fixed serialization
Fixed a bug; clarified an error message
Temporarily remove the chart rendering

This was just placeholder code.  Not sure what this will look like
yet... so remove it while some other temporary measures are in place.
Introduction of charting capabilities

FP goodness FTW. Components are pluggable for easily defining new chart
types, data sources, parameters, etc.
Adding new Chart snippet to display charts
Add My Sales chart to consignor page