* [ios] clear original image when new src set
Project: http://git-wip-us.apache.org/repos/asf/incubator-weex/repo
Commit: http://git-wip-us.apache.org/repos/asf/incubator-weex/commit/f87f25bc
Tree: http://git-wip-us.apache.org/repos/asf/incubator-weex/tree/f87f25bc
Diff: http://git-wip-us.apache.
* [ios] clear original image when new src set
Project: http://git-wip-us.apache.org/repos/asf/incubator-weex/repo
Commit: http://git-wip-us.apache.org/repos/asf/incubator-weex/commit/f87f25bc
Tree: http://git-wip-us.apache.org/repos/asf/incubator-weex/tree/f87f25bc
Diff: http://git-wip-us.apache.