Avoid get_projects to return "All-Users" project
Avoid get_projects to return "All-Users" project

This appeared since we upgraded to Gerrit 2.11.
This also break the SF dashboard as this project
detail structure is not the same as others.

Change-Id: I57b867c475aae3ff1114b6dcee6f86b9d1b6d38b

enovance/pysflib,redhat-cip/pysflib,redhat-cip/pysflib,enovance/pysflib