elf3 and pif4 are independent in flowering, data and code

new fileset containing data and code associated with the newest version of manuscript: http://biorxiv.org/content/early/2016/03/22/038257 (this is still the old manuscript version, new one to be posted soon). <br><br>本新增文件集包含与该稿件最新版本相关联的数据与代码：http://biorxiv.org/content/early/2016/03/22/038257（当前链接指向的仍为旧版稿件，新版稿件即将发布）。