ZSS-735 Picture should reuse same PictureData
ZSS-688 Clone a sheet and add it to the current book
ZSS-722 autoFill() with non-VALUE option should not copy value over.
ZSS-726 Error when typing a locale specific Currency symbol
move tests from zssmodel to zss.test, put all the books in the same folder
Merge pull request #41 from RaymondChao/fine-tune-tests

move tests from zssmodel to zss.test, put all the books in the same folder
revert back zss.test.selenium
Merge pull request #42 from RaymondChao/fine-tune-tests

revert back zss.test.selenium
ZSS-729 Range.setValidation() with formula doesn't create a drop-down input
ZSS-728 Rich text format does not apply to the cell when import excel
ZSS-700 ConcurrentModificationException happened when testing with intensive formula test case
ZSS-701 NullPointerException happened when testing with collaboration editing test case
ZSS-739 IllegalStateException when testing with collaboration editing test case
ZSS-740 IndexOutOfBoundsException when testing with collaboration editing test
Fine tune to avoid concurrent access error.
ZSS-742 Support API for input rich text
fine tune.
Bug ZSS-737: Can't type Chinese/Korean character correctly
http://tracker.zkoss.org/browse/ZSS-737
Merge pull request #43 from RaymondChao/ZSS-737

Bug ZSS-737: Can't type Chinese/Korean character correctly
Bug ZSS-744: Click toolbar button when inline editing does not stop editing in IE
http://tracker.zkoss.org/browse/ZSS-744
Merge pull request #44 from RaymondChao/ZSS-744

Bug ZSS-744: Click toolbar button when inline editing does not stop editing in IE