This patch sets I18n.defaultLocale in the Discourse.start() script block (it
was formerly always 'en') to SiteSetting.default_locale, and patches
translate() to perform fallback to defaultLocale followed by english.
Additionally, when enable_verbose_localization() is called, no fallbacks will
be performed.
It also memoizes the file loading operations in JsLocaleHelper and strips out
translations from the fallbacks that are also present in a prefered language,
to minimize file size.
- Mark the I18n object as an overridable global
- Normalize comma first style rather than turning on lax comma
- Add missing semicolons
- Remove unnecessary semicolons
- Fix options overloading in “lookup”
- Use strict comparison for typeof checks and remove unnecessary parens
