confirm on 'delete'
onComplete -> onConfirm

There's wrong infomration on plugin's web site.
Merge branch 'master' into confirm_on_delete

Conflicts:
	zeppelin-web/app/templates/zql/edit.hbs
	zeppelin-web/app/views.js
Merge pull request #19 from NFLabs/confirm_on_delete

Confirm message on delete
Create 'jobs' directory instead of 'sessions'
Fix derby dependency conflict
Change jetty-all-server version to fit cxf-rt-transports-http-jetty's requirements
Merge pull request #25 from NFLabs/fix_server_error

Fix some dependencies to keep ability to start without packaging.
Merge branch 'master' into hive_11_support

Conflicts:
	zeppelin-zengine/pom.xml