Changed maxVersion to latest Firefox release
Moved the aeWindowsApp class into a JS module
Added methods getPref() and setPref() to automatically set and retrieve prefs from the "extensions.aecreations" pref branch
Migrate prefs to the 'extensions.aecreations' pref branch
Migrate prefs to the "extensions.aecreations" pref branch
Migrate prefs to the "extensions.aecreations" pref branch