Ability to turn off editing (to match how fispa is using db toolkit
for just specific exports.

 * added noedit and editcap, to flag this situation
 * dont render any edit buttons
 * dont allow ajax calls that modify data

re Design:#2478 (.75)
better column sizes and show pending save count

re Design:#2478 (1)
db-table-editor improvements - filters

 * filters are sent to the csv export (so they can in a later patch be used)
 * columnFilters can be set on initialzation to control the defaults
 * Add text about how many rows we have and how many are displayed
 * Bugs adding new rows fixed

re Design:#2478 (1.5)
Export a filtered csv if the table is filtered

re Design:#2478 (2)
added a clear filters button re Design:#2478 (.5)
default arg to null re Design:#2478
added missing clear images
remove local columnFilters that got inadvertently closed re Design:#2478
dont add one to the column map re Design:#2478
fixed saving bugs re Design:#2478 (1)
use loops instead of typing re Design:#2478
Merged DBTableEditor
renamable columns re Design:#2478
Instead of using the tools menu, create our own menu re Design:#2478 (2)