[Effen] remove the last traces of the 'display' property from the effen component library.

sky/framework/layout.dart

Index: sky/framework/layout.dart
diff --git a/sky/framework/layout.dart b/sky/framework/layout.dart
index 4e74c8947cd4bd2298bce4b1c6304cf1fe02b5d9..7eb4aae4ae152c94be387417ee0ccb13fbd6a1b6 100644
--- a/sky/framework/layout.dart
+++ b/sky/framework/layout.dart
@@ -392,11 +392,9 @@ class RenderCSSFlex extends RenderCSSContainer {
 
 }
 
-class RenderCSSText extends RenderCSS {
+class RenderCSSParagraph extends RenderCSSContainer {
 
-  RenderCSSText(debug, String newData) : super(debug) {
-    data = newData;
-  }
+  RenderCSSParagraph(debug) : super(debug);
 
   static final Style _displayParagraph = new Style('display:paragraph');
 
@@ -404,6 +402,20 @@ class RenderCSSText extends RenderCSS {
     return super.stylesToClasses(styles) + ' ' + _displayParagraph._className;
   }
 
+}
+
+class RenderCSSInline extends RenderCSS {
+
+  RenderCSSInline(debug, String newData) : super(debug) {
+    data = newData;
+  }
+
+  static final Style _displayInline = new Style('display:inline');
+
+  String stylesToClasses(List<Style> styles) {
+    return super.stylesToClasses(styles) + ' ' + _displayInline._className;
+  }
+
   sky.Element createSkyElement() {
     return sky.document.createElement('div')
                       ..setChild(new sky.Text())