Follow changes in WD-css-ui-4-20171222

See also: http://www.w3.org/TR/2017/WD-css-ui-4-20171222/

Author: hail2u

after/syntax/css/css-ui-4.vim

@@ -1,3 +1,3 @@
-syn match cssUIProp contained "\<caret\(-\(shape\|animation\)\)\=\>"
+syn match cssUIProp contained "\<caret\(-shape\)\=\>"
 syn keyword cssUIAttr contained fade underscore
 syn region cssFunction contained matchgroup=cssFunctionName start="\<fade\s*(" end=")" oneline keepend

test/test.css

@@ -841,7 +841,7 @@
 .ui-4 {
   caret: fade;
   caret-shape: fade(1em);
-  caret-animation: underscore;
+  display: underscore;
 }
 
 .values-3 {