Prevent users from selecting non-helpful code
Clean up Quick-start Instructions

Now lines can be copy-pasted as is into a terminal
Move `user-select` CSS to more specific selector
Excludes should be relative to the site source
Ensure leading slashes in path matching.
Add tests for new exclude behaviour.
Cast to string before duplicating.
Merge pull request #1883 from pathawks/master
Update history to reflect merge of #1883 [ci skip]
Add jekyll-compass to the list of plugins
Move #glob_include? from core_ext to entry_filter
Use 'Forwardable' module to pass along some attribute calls to @post
Merge pull request #1927 from jekyll/delegate-silly
Update history to reflect merge of #1927
Merge pull request #1923 from mscharley/master
Update history to reflect merge of #1923
Merge pull request #1916 from jekyll/gitignore-excludes
Update history to reflect merge of #1916
Update the documentation for the new exclude behavior
Rename read_things to read_content.