Implemented edge aggregation.  Note:  Requires commit #985cfb8 in Vande
Fixed a date ingest issue that prevented correct dates from appearing in the data.  Note: to see this fix, you will have to re-run the ingest process and produce a new data set
Added overrides for the TXNGNodeDisplay setAttrs() function to be more Walker-specific.  This lets you click on an email identifier in the Details Panel and view the email contents
Include new NodeEditor.js
Fixed a problem where clicking on a row in the grid or on an arrow in the timeline did not cause the other to highlight the matching data.
Walker draws circles for its legend instead of loading icons.
Merge remote-tracking branch 'origin/4.1.0'