Branch for CDH5.3.9

Branch for CDH5.4.9

Branch for CDH5.5.1

[desktop] Only allow owners to change document permissions

(cherry picked from commit 45287b5)

Branch for CDH5.4.8

Branch for CDH5.3.8

Branch for CDH5.4.7

[libzookeeper] Make sure that ensemble list is converted to a string

ensemble=localhost:2181,localhost:2182,localhost:2183
will create a list
['localhost:2181', 'localhost:2182', 'localhost:2183']

While
ensemble="localhost:2181,localhost:2182,localhost:2183"
will stay as a string
"localhost:2181,localhost:2182,localhost:2183"

Conflicts:

	desktop/libs/libzookeeper/src/libzookeeper/conf.py
	desktop/libs/libzookeeper/src/libzookeeper/tests.py