Update docs to reflect new default filters
Update docs to reflect new default filters

Server group scheduler filters were added to the default set of
scheduler filters.  Update the docs to reflect the updated defaults.

Change-Id: I614cf83e419c93038fc4ed7287ec743cedb4860e
Related-bug: #1303983
(cherry picked from commit 71661a9c05c846ce109b72706bba2087cb0b02a5)

leilihh/nova,leilihh/nova,leilihh/novaha,shahar-stratoscale/nova,leilihh/novaha,luogangyi/bcec-nova,shahar-stratoscale/nova,luogangyi/bcec-nova