fix #160
Merge branch 'master' of https://github.com/xiechao06/lite-mms into issue160
fix #160
Merge pull request #163 from xiechao06/issue160

Issue160
fix bug
Merge remote-tracking branch 'origin/master'
Merge branch 'master' into issue94

Conflicts:
	lite_mms/portal/delivery_ws/webservices.py
quantity can be 0