add library path for build
ZSS-854 Support import/export DXfs styles in XLSX file
Merge branch '3.6' of github.com:zkoss/zkspreadsheet into 3.6
ZSS-856 Support import/export diagonal border in XLSX file.
ZSS-849 Support show cell comment
Merge pull request #64 from jerrywell/zss849

ZSS-849 Support show cell comment
ZSS-852 Support condition in SUMPRODUCT function
ZSS-853 A cell applied with text format is still evaluated as a formula
ZSS-5 Support insert/edit/delete comment
Merge pull request #65 from jerrywell/zss5

ZSS-5 Support insert/edit/delete comment
ZKSS
test