refine deploy script
refine deploy script, check if password correct
add comments to kylin.properties
refine comment in kylin.properties
Merge branch 'origin/master'
check remote cli username/password asap
Merge branch 'master' into unstable
error handling on the way
Merge branch 'origin/master'
Deal with exceptions in security code &&

Merge branch 'master' into unstable

Conflicts:
	server/src/main/java/com/kylinolap/rest/service/UserService.java
Merge branch 'unstable' of https://github.com/KylinOLAP/Kylin into unstable
change meaning of ROLE_MODELER
Merge branch 'master' of https://github.com/KylinOLAP/Kylin