1. Add retry for Get Statics Text keywords make this operation robust;
2. Replace image to one with slash in name for CNAB test, to cover more
condition;
3. Add replication rule deletion verfication in upgrade test;
4. Add non-admin user in pull operation for proxy cache test;
5. Add verification for quota display for upgrade test;
6. Add test for large size of image replication;
7. Add test checkpoint for system robot account py-test script;
Signed-off-by: Danfeng Liu (c) <danfengl@vmware.com>
ddf9d74135