Merge pull request #75 from jerrywell/6.5

Bug ZK-2341: Nested cardlayout did not show correctly
* Bug ZK-2350: Filedownload with file name contain empty string become to "+" sign in IE
* Fine tune B65-ZK-1619_1.jsp test case

Conflicts:

	zkdoc/release-note
	zktest/src/archive/test2/config.properties
merge ZK-2181 fixed into ZK 6.5.x version
Bug ZK-2369: borderlayout autoscroll issue iphone5