Add Menu.removeMenuDivider()
Add Menu.removeMenuDivider unit tests
Remove all menu items before removing menu
Fix problem with removing dividers.  Add remove menu (native) unit tests.
Replace not.toBeNull() with toBeTruthy()
Add menu item/keyboard shortcut for New Rule. Also properly enable/disable other inline-editor-specific commands in the menu.
Focus the New Rule button if there are stylesheets but no matching rules
Remove extra spaces
Merge pull request #5384 from lkcampbell/fix-remove-menu

Menus.removeMenu cleanup: remove all menu items and dividers prior to removing menu
Merge pull request #5572 from adobe/nj/new-rule-shortcut

Add keyboard shortcut for new rule
Merge branch 'master' of https://github.com/adobe/brackets