added module for Zimbra Collaboration Server CVE-2013-7091
ChrisJohnRiley fix for sap_service_discovery
various updates
Clean zimbra_lfi
Merge pull request #2 from jvazquez-r7/review_2774

Clean zimbra_lfi
Change ranking
Land #2774, @Mekanismen's module for CVE-2013-7091
Land #2776 - Avoid having the same port twice