YAML Multiselect/Tagger

This release adds a multiselect/tagger to the range of interfaces for Jekyll front matter and YAML. This is perfect for categories, tags or country code selectors.

Features:

• Multiselect/tagger added to front matter interfaces.
• New look and feel to docs.cloudcannon.com.

Fixes:

• Fixed empty front matter and editables causing odd behaviour.
• DNS interface layout fixes for Safari.