fix(transformer): Transformer needs html5lib 0.9.2

Author: jbdeboer

pubspec.yaml

@@ -20,7 +20,7 @@ dependencies:
   di:
     git:
       url: git://github.com/angular/di.dart.git
-  html5lib: '>=0.8.7 <0.10.0'
+  html5lib: '>=0.9.2 <0.10.0'
   intl: '>=0.8.7 <0.10.0'
   perf_api: '>=0.0.8 <0.1.0'
   route_hierarchical: '>=0.4.7 <0.5.0'