Warn when the order of properties isn't followed

[XhmikosR]

1. border shorthand. It must be width style color.

2. font shorthand.
   font-style font-variant font-weight font-size/line-height font-family
font-size and font-family are required only though.

3. list-style needs to follow a specific order too: type position image

4. outline. It must be color style width

I'm not sure if there are more properties that need a specific order.