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/compiler/directive_metadata_spec.ts

@@ -43,8 +43,8 @@ export function main() {
         dynamicLoadable: true,
         type: fullTypeMeta, template: fullTemplateMeta,
         changeDetection: ChangeDetectionStrategy.Default,
-        properties: ['someProp'],
-        events: ['someEvent'],
+        inputs: ['someProp'],
+        outputs: ['someEvent'],
         host: {'(event1)': 'handler1', '[prop1]': 'expr1', 'attr1': 'attrValue2'},
         lifecycleHooks: [LifecycleHooks.OnChanges]
       });