- user no longer have to choose the translation data script, it's
  selected automatically from the translation gadget configured on the
  web site
- add some notes in workflow history for traceability
- rename from "Create Translation Data" to *Update* Translation Data, as
  this script can be called multiple times to update
- rename the dialog and script to comply with naming conventions
- add a header to generated translation data script to explain that this
  is generated and that it should not be edited manually
- generate code passing jslint and typescript