update release note for resolving ZSS-527
fix ZSS-538 Ctrl+u doesn't apply underline to a cell
ZSS-534 font size not displayed properly in toolbar
fix ZSS-536
add zss-534 test case
fix release-note
ZSS-533
 * remove tolerant function
 * add test case
 * update release-note
Merge branch 'origin/3.0'

Conflicts:
	zss.test/src/main/webapp/issue3/book/533-name-el-udf.xlsx