feat(core): renames Property into Input and Event into Output

BREACKING CHANGE:

Before: @Directive({properties: ['one'], events: ['two']})
After: @Directive({inputs: ['one'], outputs: ['two']})

Before: @Component({properties: ['one'], events: ['two']})
After: @Componet({inputs: ['one'], outputs: ['two']})

Before: class A {@Property() one; @Event() two;}
After: class A {@Input() one; @Output() two;}

modules/angular2/test/public_api_spec.ts

@@ -156,11 +156,11 @@ var NG_API = [
   'Component.bindings',
   'Component.changeDetection',
   'Component.compileChildren',
-  'Component.events',
+  'Component.outputs',
   'Component.exportAs',
   'Component.host',
   'Component.moduleId',
-  'Component.properties',
+  'Component.inputs',
   'Component.queries',
   'Component.selector',
   'Component.viewBindings',
@@ -168,11 +168,11 @@ var NG_API = [
   'ComponentMetadata.bindings',
   'ComponentMetadata.changeDetection',
   'ComponentMetadata.compileChildren',
-  'ComponentMetadata.events',
+  'ComponentMetadata.outputs',
   'ComponentMetadata.exportAs',
   'ComponentMetadata.host',
   'ComponentMetadata.moduleId',
-  'ComponentMetadata.properties',
+  'ComponentMetadata.inputs',
   'ComponentMetadata.queries',
   'ComponentMetadata.selector',
   'ComponentMetadata.viewBindings',
@@ -373,21 +373,21 @@ var NG_API = [
   'Directive',
   'Directive.bindings',
   'Directive.compileChildren',
-  'Directive.events',
+  'Directive.outputs',
   'Directive.exportAs',
   'Directive.host',
   'Directive.moduleId',
-  'Directive.properties',
+  'Directive.inputs',
   'Directive.queries',
   'Directive.selector',
   'DirectiveMetadata',
   'DirectiveMetadata.bindings',
   'DirectiveMetadata.compileChildren',
-  'DirectiveMetadata.events',
+  'DirectiveMetadata.outputs',
   'DirectiveMetadata.exportAs',
   'DirectiveMetadata.host',
   'DirectiveMetadata.moduleId',
-  'DirectiveMetadata.properties',
+  'DirectiveMetadata.inputs',
   'DirectiveMetadata.queries',
   'DirectiveMetadata.selector',
   'DirectiveResolver',
@@ -407,8 +407,8 @@ var NG_API = [
   'ElementRef.renderBoundElementIndex=',
   'ElementRef.renderView',
   'ElementRef.renderView=',
-  'Event',
-  'Event.bindingPropertyName',
+  'Output',
+  'Output.bindingPropertyName',
   'EventEmitter',
   'EventEmitter.add():dart',
   'EventEmitter.addError():dart',
@@ -454,8 +454,8 @@ var NG_API = [
   'EventEmitter.toSet():dart',
   'EventEmitter.transform():dart',
   'EventEmitter.where():dart',
-  'EventMetadata',
-  'EventMetadata.bindingPropertyName',
+  'OutputMetadata',
+  'OutputMetadata.bindingPropertyName',
   'ExpressionChangedAfterItHasBeenCheckedException',
   'ExpressionChangedAfterItHasBeenCheckedException.message',
   'ExpressionChangedAfterItHasBeenCheckedException.stackTrace',
@@ -790,10 +790,10 @@ var NG_API = [
   'PlatformRef.dispose()',
   'PlatformRef.injector',
   'Predicate:dart',
-  'Property',
-  'Property.bindingPropertyName',
-  'PropertyMetadata',
-  'PropertyMetadata.bindingPropertyName',
+  'Input',
+  'Input.bindingPropertyName',
+  'InputMetadata',
+  'InputMetadata.bindingPropertyName',
   'ProtoViewRef',
   'Query',
   'Query.descendants',
@@ -866,8 +866,8 @@ var NG_API = [
   'RenderDirectiveMetadata.changeDetection=',
   'RenderDirectiveMetadata.compileChildren',
   'RenderDirectiveMetadata.compileChildren=',
-  'RenderDirectiveMetadata.events',
-  'RenderDirectiveMetadata.events=',
+  'RenderDirectiveMetadata.outputs',
+  'RenderDirectiveMetadata.outputs=',
   'RenderDirectiveMetadata.exportAs',
   'RenderDirectiveMetadata.exportAs=',
   'RenderDirectiveMetadata.hostAttributes',
@@ -878,8 +878,8 @@ var NG_API = [
   'RenderDirectiveMetadata.hostProperties=',
   'RenderDirectiveMetadata.id',
   'RenderDirectiveMetadata.id=',
-  'RenderDirectiveMetadata.properties',
-  'RenderDirectiveMetadata.properties=',
+  'RenderDirectiveMetadata.inputs',
+  'RenderDirectiveMetadata.inputs=',
   'RenderDirectiveMetadata.queries',
   'RenderDirectiveMetadata.queries=',
   'RenderDirectiveMetadata.readAttributes',