1.8.0

Bugfix release

Bunch of minor and major fixes and even more established development environment.

• Gallery fixes, add columns based on wp-admin option
• Include WordPress gallery by default, fix typo in class name
• Remove duplicate container on single template
• Update npm packages, fix jeet path
• Implement _s changes
• Prefix fixes
• Only generate pingback url header tag when relevant
• Move hero to header
• Fix skip to content link
• Add requirements
• Show full layout on development mode when admin bar is enabled