Improvements and bug fixes - progression to version 0.1.0

* Admin
** Fixes label alignment and input widths
** Added placeholders to time fields
** Added JS validation & UX improvements (autofocus etc)
** Show/Hide time boxes depending on Open/Close status
** Added template shortcode column
** Added ? links to column headings
** Added support for sub classifications of the LocalBusiness
Organisational Schema
** Added option to show/hide closed days on the front end
* Frontend
Fixed div/ul closing tag bug
** Added support for sub classifications of the LocalBusiness
Organisational Schema
** Added option to show/hide closed days on the front end