Add allowClear option to select2 when loading content from an ajax call
Merge pull request #59 from jonathanbardo/master

Add option to clear selection from select2 when loading content from an AJAX call
Ensure markup for editor uses double not single quotes to prevent JS errors
Merge branch 'master' of github.com:humanmade/Custom-Meta-Boxes
Merge branch 'refs/heads/master' into sortable-2013