CLOUDSTACK-5404: Fix timezone bug in network usage
(cherry picked from commit d5277a81e644c6db30cff12878cd3708aa28cc86)

Conflicts:

	engine/schema/src/com/cloud/usage/dao/UsageDaoImpl.java
CLOUDSTACK-5846: added updateCloudToUseObjectStore to known_category dict in gen_toc.py

Signed-off-by: Abhinandan Prateek <aprateek@apache.org>
Fix typo