fix(apache) support line continuation with \

Author: joshgoebel

src/languages/apache.js

@@ -73,6 +73,10 @@ export default function(hljs) {
           relevance: 0,
           keywords: { literal: 'on off all deny allow' },
           contains: [
+            {
+              scope: "punctuation",
+              match: /\\\n/
+            },
             {
               className: 'meta',
               begin: /\s\[/,