- fix for bug #1417: some minor cleanup, renamed widget from
  "state_widget" to "us_state_widget", added comments, and subsite-id
  to refer to package parameters of the subsite.
-fix for tcl-expressions in message catalogs (see
 http://openacs.org/forums/message-view?message_id=4185876)
  This must be most likely quite an old bug, since many packages
  use unescaped square brackets in message strings, some packages
  such as evaluation have even tcl code there. strangely, there is
  no bug-report for this, seems as if the contract-filters
  "string_length" and "range" are not widely used.
- bump version number
- improve appearance (remove "manual" breadcrums)
- prettify documentation (use master templates)
- prettify documentation (use master templates) and fix incorrect HTML markups