More cleanup of Dojo JSON files

More cleanup of Dojo JSON files

  * Double-quote all strings - no single-quoting or barewords
  * Don't escape dollar signs
  * JSON doesn't allow expressions like string continuations ("" + "")

reservations.js has some remaining issues, looks like functions were
defined for what should be simple string substitutions. dojo.string.substitute()
will solve this problem, I believe, with ${0}, ${1}, etc tokens for substitution

git-svn-id: svn://svn.open-ils.org/ILS/trunk@16606 dcc99617-32d9-48b4-a31d-7c20da2025e4