Tweaks:
- get() method can now report loaded and well as wanted locale
- msg() passed without vars still gets formatted to catch malformed strings
- set('en', false) followed by set('en', true) will now immediately load
- Lang::$synched was not getting set to true properly
Tests:
- Added test for get()
- Added test for malformed strings (exception code was missing)
- Added test for missing strings
- Added test for strings taking variables not being passed any variables
