Dirty Snow White and the Seven Fixes

Added

• Pull request template for GitHub

Changed

• Removed vertical margins from grav-c-two-columns-text
• Page-header now supports wrapping the logo in an <h1> instead of an <a>
• Blue gradient bg with white text removed from hero and replaced with dirty snow white bg with default body text colour

Fixed

• List items now have margins between one another when they are wrapped in list-inline-row
• Headings splitting over into seperate lines in job-list
• Navigation bar being cropped in Firefox & Edge when viewport was scaled down