[#39549737] Compatability with FF19
[#45130471] Optimizes admin entity query

was totally bombing on sqlite
[#39549737] Adds __exposedProps__ attribute to web sql exceptions

Required for execeptions to be properly exposed
to the app.
Updates offline installation instructions

o Point users to our own copies of Gears and the
  web sql plugin
o Instruct IE9 users to install gears (seems to work)