* ZSS-399: add test case
* update release-note
* add zsspdf and zsshtml Maven dependencies into zss.test
* turn on ZK javascript debug mode
ZSS-420: 
 * fix freeze panel index misunderstanding issue.
 * add test case.
 * update release-note.
ZSS-421:
 * fixed: calculate in-line editor must consider the freeze panel
 * add test case
 * update release-note