This massive code commit actually implements something very simple.
previously, we allowed nova_config to omit a section and assumed that
section was default.
This commit updates the code to require section names for all settings.
This change is being made b/c:
- it better maps to the config on disk
- it is consistent with the other modules
Change-Id: Iae71a4c48ed0f9792566f16f0bf13e61569b46e5
Allow to specify the database charset but still default to 'latin1' if
none is provided.
Remove nova::params::nova_db_charset. Both osfamily were using 'latin1'
since the update for Folsom in 76d4632.
