Merge pull request #230 from huangnoah/fix-70

Fix 70
fix some test cases
Merge branch '7.0' of https://github.com/zkoss/ztltest into fix-case
Merge pull request #231 from huangnoah/fix-70

fix case
Merge pull request #232 from huangnoah/fix-70

Fix 70
Merge pull request #233 from huangnoah/fix-70

Fix 70
fix case
fix scrollbar issue
Merge pull request #234 from RaymondChao/fix-case

Fix case
fix testcase
Merge pull request #235 from RaymondChao/fix-case

Fix case
fix case
Merge branch '7.0' of https://github.com/zkoss/ztltest into fix-70