fix verifyImage to verifyImage() to prevent the conflict between java and scala
fix ZK-410 for firefox and ignore ZK-1748 for ie8
Merge branch 'fix-65'

Conflicts:
	vision-test/org/zkoss/zktest/test2/B50/B50-ZK-410.ztl
	zstl/vision-test/org/zkoss/zktest/test2/B65/B65_ZK_2047Test.scala
	ztl.ignore