Fix typos in tempest/api/README.rst

Change-Id: Icf2ba80e5561ca439a91f4851b09bf013e0d2492
Fixes: Bug #1212545
skip test_list_servers_filtered_by_ip_regex on neutron gate

The regexp based ip filtering is stalled in neutron and will not be
fixed soon. The test case will be disabled in the neutron runs until it
 is fixed.

A related review:
https://review.openstack.org/#/c/38600/

Change-Id: If1eb3e63289be7f5b560a7055b47769f8e1061fd
Fixed test for non-public flavor

1. Fixed test to check non-public flavor is available for
owner tenant but not for other tenants

2. Skipping this test until the fix for this bug is
committed in nova.

Change-Id: I9917915c098d0f74948331735f4ba6ae54c03896
Part of bug 1209101
Merge "Fix typos in tempest/api/README.rst"
Merge "skip test_list_servers_filtered_by_ip_regex on neutron gate"
Merge "Fixed test for non-public flavor"