Merge pull request #59 from GordonSmith/REFACTOR_4_DEMO

Refactor WsWorkunits and WsECL for Demo.
Merge pull request #60 from GordonSmith/DATE_AXIS

Add support for x-axis scale of type "DATE" (YYYY-MM-DD).
Merge pull request #61 from GordonSmith/ACTIVATE_FAILS

MultiChartSurface active before rendering has inconsistent results.
Add Google Pie visualization.

Signed-off-by: Gordon Smith <gordon.smith@lexisnexis.com>
Demo/Test Page(s)

Signed-off-by: Gordon Smith <gordon.smith@lexisnexis.com>