Pull request #1586: REPORT-43571 生命周期缺失上下文

Merge in VISUAL/fineui from ~TELLER/fineui:bugfix to master

* commit 'e5c614bc2bd5ec6d6190b7e45321014ae2192745':
  REPORT-43571 fix: 生命周期缺失上下文

src/core/widget.js

@@ -11,7 +11,7 @@
         if (self[life]) {
             var hooks = BI.isArray(self[life]) ? self[life] : [self[life]];
             BI.each(hooks, function (i, hook) {
-                hook();
+                hook.apply(self);
             });
         }
     }