Merge pull request #246 from huangnoah/fix-70

fix case
Merge pull request #247 from huangnoah/fix-70

fix case
Merge pull request #248 from huangnoah/fix-70

fix case
Merge pull request #249 from huangnoah/fix-70

fix case
Merge pull request #250 from huangnoah/fix-70

fix case
update driver {selenium: 2.37, chrome: 2.4, opera: 1.5}
Merge branch '7.0' of https://github.com/zkoss/ztltest into fix-70