fix touch device style issue
upgrade ZK version to 6.1.0
Merge branch 'touch-issues' into F6.1
add gitignore
Merge branch 'F6.1' of git://github.com/zkoss/zkthemes into F6.1

Conflicts:
	.gitignore
Feature ZK-970: The Tab component support caption component as it's label
Merge branch 'F6.1' of git://github.com/zkoss/zkthemes into F6.1
Feature ZK-1145: Notification supports closable
Feature ZK-1175: Calendar support show week number
Feature ZK-120: Provide menupopup="auto" for listbox
Feature ZK-969: The LayoutRegion component support caption component as it's title
Feature ZK-147: Support ungroup for grid's column menu
Grid column menu arrow showed by default in mobile device
Merge pull request #2 from VincentJian/F6.1

F6.1 touch issue
add zk and zul to the demo project
bug fixed for new chrome version
Feature ZK-447: The file upload allows users to drag and drop local files (HTML5)
Listbox column menu for tablet
update menu
add more test case