Django's default SECRET_KEY is an empty string, which is actually not
secure. Use horizon.util.secret key to generate a unique key and store
it securely.
Change-Id: I7b6deed7db6136ee15ac7ea315019a5b78698f7d
* update horizon apache config
* updates apts for horizon
* better logging for horizon
* keystone conf settings
* only add swift endpoint if it is enabled
* new nova paste
Change-Id: I1edacbe5d8adc4bd5265d36abcaf01ce5490aefd