Feature: Auto-append "wcmmode=disabled"

[kevinweber]

• Automatically add "wcmmode=disabled" to each URL that doesn't contain "editor.html".
• This should be an opt-in feature that can be enabled by checking an option using the modal.
• This feature can be helpful if you're navigating through a larger site that is pretty much unusable when "wcmmode=disabled" isn't appended to the URL