fix topic updating
Merge pull request #443 from Trott/fix-topic-updates

fix topic updating
rm extra space
name getters get*
they're just properties, keep it simple
no more PreferencesModel object
move specs from pref model to ilios base
mv spec file in preparation for refactor
add spec that was moved... fanks git
whoops, my mistake, fanks me!
update describe()
add placeholder ilios_preferences.js file in preparation for refactor
rm obsolete file, point files that were using it to stub for subsequent refactoring
move prefs to its own file, nothing for it in base please
ilios.global.preferencesModel -> ilios.preferences.preferencesModel
Merge pull request #451 from Trott/prefs

Prefs refactor
composer install for behat tests
comments
install Selenium
run Selenium server as a hub