This improves the reliability of the cache:clear command by not requiring the custom winter cache directories to exist when running cache:clear.
Also removes the clearing of disabled.json which is no longer used as of 1bbfb67d8c
@Carbon::parse was still failing, wrapped in do nothing try/catch instead
We don't seem to need to prefix time values anymore, since DateTimeHelper::makeCarbon should handle it
Fixes#2299
Added a helped Backend::DateTime() for rendering the appropriate HTML output as a <time /> tag
The meta now specifies the locale and timezone preference used here
Lists now take advantage of this to display dates relative to the timezone and language (awesome sauce)
@todo Still need to get apply this logic to the datepicker form widget
