Merge pull request #23 from pavelgj/remove-questionmarks

Replaced questionmark operator throughout as it's deprecated

Author: pavelgj

lib/block.dart

@@ -336,7 +336,7 @@ class ComponentFactory {
 
 attrAccessorFactory(dom.Element element, String name) {
   return ([String value]) {
-    if (?value) {
+    if (value != null) {
       if (value == null) {
         element.removeAttribute(name);
       } else {

lib/block_type.dart

@@ -7,7 +7,7 @@ class BlockTypeFactory {
 
   BlockType call(templateElements, directivePositions, [group]) {
     return new BlockType(blockFactory, templateElements, directivePositions,
-                         ?group && group != null ? group : '');
+                         group != null ? group : '');
   }
 }
 
@@ -26,7 +26,7 @@ class BlockType {
   }
 
   Block call(Injector injector, [List<dom.Node> elements]) {
-    if (!?elements || elements == null) {
+    if (elements == null) {
       elements = cloneElements(templateElements);
     }
     return blockFactory(elements, directivePositions, group, injector);

lib/debug.dart

@@ -22,16 +22,16 @@ MARK(name) {
 
 dump([p1, p2, p3, p4, p5, p6, p7, p8, p9, p10]) {
   var log = [];
-  if (?p1) log.add(STRINGIFY(p1));
-  if (?p2) log.add(STRINGIFY(p2));
-  if (?p3) log.add(STRINGIFY(p3));
-  if (?p4) log.add(STRINGIFY(p4));
-  if (?p5) log.add(STRINGIFY(p5));
-  if (?p6) log.add(STRINGIFY(p6));
-  if (?p7) log.add(STRINGIFY(p7));
-  if (?p8) log.add(STRINGIFY(p8));
-  if (?p9) log.add(STRINGIFY(p9));
-  if (?p10) log.add(STRINGIFY(p10));
+  if (p1 != null) log.add(STRINGIFY(p1));
+  if (p2 != null) log.add(STRINGIFY(p2));
+  if (p3 != null) log.add(STRINGIFY(p3));
+  if (p4 != null) log.add(STRINGIFY(p4));
+  if (p5 != null) log.add(STRINGIFY(p5));
+  if (p6 != null) log.add(STRINGIFY(p6));
+  if (p7 != null) log.add(STRINGIFY(p7));
+  if (p8 != null) log.add(STRINGIFY(p8));
+  if (p9 != null) log.add(STRINGIFY(p9));
+  if (p10 != null) log.add(STRINGIFY(p10));
   js.scoped(() {
     js.context.console.log(log.join(', '));
   });

lib/scope.dart

@@ -354,7 +354,7 @@ class Scope implements Map {
         event = new Event(name, this);
 
     //down while you can, then up and next sibling or up and next sibling until back at root
-    if (!?listenerArgs) {
+    if (listenerArgs == null) {
       listenerArgs = [];
     }
     listenerArgs.insert(0, event);

lib/selector.dart

@@ -28,7 +28,7 @@ Selector selectorFactory(List<String> selectors, [String startWith]) {
   selectors.forEach((selector) {
     var match;
 
-    if (?startWith) {
+    if (startWith != null) {
       if (selector.substring(0, startWith.length) == startWith) {
         selector = selector.substring(startWith.length);
       } else {