Add 'get_fields' message so that panels can obtain the
currently active fields
Initial code dump for parallel coordinates
Mostly working parallel coordinates
Emit 'table_documents' message so that table can update
Add d3 to common lib folder
Add ordinal scale for string-based fields
Remove unused settings
Cleanup, comments
Fix resizing viewbox for svg
Remove hard-coded coloring value
Merge pull request #51 from polyfractal/parallelcoordinates

Add Parallel Coordinates panel