fixes #1316 - Postgres DB Error while run rake db:migrate

fixes #1180 - db migration may fail because of missing logger

fixes #1085 - add default domain and subnet settings to hostgroups

fixes #724 - Allow default VM specs to be tied to a hostgroup

fixes #1058 Adds support for OpenSuSE provisioning

Fixes #989 - Add Sparc Solaris support

Signed-off-by: Paul Kelly <paul.ian.kelly@googlemail.com>

fixes #1049 - Ensures that all audit db fields are in place prior to first audit

fixes #777 - this enable auditing of when a host is changing its puppet class assignmetns

one limitation of this patch is that at the moment, each class change
gets its own audit record.

fixes #322 Ability to add custom variables and multiple values resovled
in a dynamic Hierarchally order

This commits introduces the ability to define variables per puppet
class.

additionally, each class can have multiple values, depends on the host
which is requesting that variable....

splitted setting default data from the migration
this allows to add new data and modify its defaults
improved settings UI a bit more
refs #100