Adding no parent breadcrumb templates

Templates will only show page name in the breadcrumb, even if set as
child to another page.
boxSizingOn body class

Sets box-sizing: border-box CSS rule on any page with boxSizingOn body
class
Updated siteTitle style on mobile
Moving nullAlt script to header
Location page width fixes

Added percentage widths and flexbox.

See: https://github.com/zgreen/MITlibraries-parent/issues/3
Removing a link
Removing & moving unnecessary scripts and styles

A number of scripts and styles were called unnecessarily across all
pages.

- jQuery was called twice
- datepicker.js js & css called on all pages
- cycle.js called on all pages and never used
- lightbox.js and css called on all pages and never used
Cleaning up align classes