ZSS-687: Formula that refer to a NameRange does not update contents correctly
Feature ZSS-678: Support creating reference between two sheets
http://tracker.zkoss.org/browse/ZSS-678
Merge pull request #14 from RaymondChao/ZSS-678

Feature ZSS-678: Support creating reference between two sheets
Refix ZSS-171: Input "=" on cell shall not append cell reference
http://tracker.zkoss.org/browse/ZSS-171
Merge pull request #16 from RaymondChao/v35-refix-ZSS-171

Refix ZSS-171: Input "=" on cell shall not append cell reference
Bug ZSS-514: if the font size is larger than 24, the text will overlap each other when using inline editor
http://tracker.zkoss.org/browse/ZSS-514
ZSS-691: Support calculation in Excel's double precision
Merge pull request #17 from RaymondChao/ZSS-514

Bug ZSS-514: if the font size is larger than 24, the text will overlap each other when using inline editor
ZSS-580: update release-note
ZSS-514: minor fix release-note
ZSS-514: update release-note
ZSS-619: fine tune test case.
Merge branch '3.5' of github.com:zkoss/zkspreadsheet into 3.5
ZSS-609: The input text box doesn't disappear when rename sheet bar with empty name and click another sheet
http://tracker.zkoss.org/browse/ZSS-609
Merge pull request #18 from RaymondChao/ZSS-609

ZSS-609: The input text box doesn't disappear when rename sheet bar with empty name and click another sheet
temptest