Basic changes to make controller tests run without top-level Errors
  * remove re-opening of ApplicationController which stopped tests from running
and is also now useless.  See https://groups.google.com/forum/#!topic/mo-developers/ku3jjCV0dM4
  * fix typo in ApplicationController
modernize explicit instances of :confirm =>
Went over autocomplete.js and ensureVisible() with fine-toothed comb.
Hopefully fixed scrollbar issue and jumping cursor bug.
Fingers crossed...
Merge branch 'master' of https://github.com/MushroomObserver/mushroom-observer into ror4-joe