Merge branch '3.5' of https://github.com/zkoss/zkspreadsheet into ZSS-681
Merge branch '3.5' of https://github.com/zkoss/zkspreadsheet into ZSS-681
Bug fixed ZSS-632: mailto link should not appear in web address textbox in "Insert Hyperlink" dialog
http://tracker.zkoss.org/browse/ZSS-632
Merge pull request #29 from RaymondChao/ZSS-632

Bug fixed ZSS-632: mailto link should not appear in web address textbox in "Insert Hyperlink" dialog