* Modify test formula files
* formula test case refine, use assertion in FormulaTestBase.java
ZSS-446 border patterns around a cell it is not showing in the exported pdf file
formulaTestBase
Merge remote-tracking branch 'origin/3.0' into 3.0
add test case for zss-441
missing '}'
refine testcase
fix issue after merge
add ZSS-447 test case
change build setting. set ZPOI version to 3.9
ZSS-219 Problem with org.zkoss.zss.ui.Spreadsheet.focusTo
ZSS-447 Date format and display doesn't match
add testcase for zss447, also refine testcase
ZSS-214 NPE when I try to rename sheet
Move ignored test case
ZSS-256 hidden column is not hiding when displaying a excel file
ZSS-313 after several switching sheets and resize row height, cells frame become a mess
ZSS-440 IE10 resizing column (java.lang.Double cannot be cast to java.lang.Integer)
update release note for ZSS-272, ZSS-428
Merge branch 'origin/3.0'

Conflicts:
	zkdoc/release-note