fix(upgrade): Corrects query to clear admin remember me cookies
Merge pull request #6773 from mrclay/fix_clear_codes

fix(upgrade): Corrects query to clear admin remember me cookies
docs(contribute): clean up PR instructions
docs(contribute): add instructions for rewriting commit messages

Refs #5976
Merge pull request #6781 from ewinslow/docs-contribute-code

docs(contribute): clean up PR instructions
chore(css): changed page menu item radius 

It is now in line with other rounded navigation elements
fix(css): selected page menu does not collapse sub menu
chore(travis): add 'deprecate' commit type

This type will allow us to easily call out deprecations in changelogs

Fixes #6785
Merge pull request #6794 from ewinslow/deprecate-b6785

chore(travis): add 'deprecate' commit type
Merge pull request #6790 from jdalsem/page-menu-collapse-css-fix

Page menu collapse css fixes
fix(admin): show plugin settings menu on markdown page
Merge pull request #6788 from jdalsem/plugin-text-file-sidebar-menu

fix(admin): show plugin settings menu on markdown page