Closes #2269 - Restore query and filter from dash.searchSource.getOwn('filter')
Merge pull request #2273 from simianhacker/fix-2269

Closes #2269 - Restore query and filter from dash.searchSource
fixed malformed html entities
remove request clipboard copying, in lieu of fixing #1879 for now
tweak the sorting test data, tests still pass
add failing test for sorting by new column
fix sorting on new columns