Merge pull request MyIntervals#188 from NitroPack/fix/preserve-var-casing

Preserve casing for CSS var names

Author: sabberworm

lib/Sabberworm/CSS/Rule/Rule.php

@@ -32,7 +32,7 @@ public function __construct($sRule, $iLineNo = 0) {
 
 	public static function parse(ParserState $oParserState) {
 		$aComments = $oParserState->consumeWhiteSpace();
-		$oRule = new Rule($oParserState->parseIdentifier(), $oParserState->currentLine());
+		$oRule = new Rule($oParserState->parseIdentifier(!$oParserState->comes("--")), $oParserState->currentLine());
 		$oRule->setComments($aComments);
 		$oRule->addComments($oParserState->consumeWhiteSpace());
 		$oParserState->consume(':');