Allow configurable timezones that default to UTC. [1/1]

This pull requests adds support for setting the default timezone at OS
install time.  By default, the timezone defaults to UTC, but it can be
changed to any valid timezone by editing the provisioner proposal.

Closes DE632.


 chef/cookbooks/provisioner/recipes/update_nodes.rb |    4 ++++
 .../provisioner/templates/default/autoyast.xml.erb |    4 ++++
 .../provisioner/templates/default/compute.ks.erb   |    2 +-
 .../provisioner/templates/default/net_seed.erb     |    2 +-
 .../data_bags/crowbar/bc-template-provisioner.json |    1 +
 .../crowbar/bc-template-provisioner.schema         |    1 +
 6 files changed, 12 insertions(+), 2 deletions(-)

Crowbar-Pull-ID: 82bfeac19d5b828346a06b86c629070afd6edfd2

Crowbar-Release: pebbles