fixes #2121, #2069 - restrict importers and ENC to puppetmasters and users

CVE-2013-0171: report and fact importers parse YAML directly from the remote
host without authentication. Untrusted YAML can instantiate objects and be
used to exploit Foreman.

CVE-2013-0174: external nodes (ENC) output is available to any source and...

fixes #2069 - use a random salt when saving the root password

CVE-2013-0173: insecure fixed salt "foreman" for passwords

Remove mention of tenants from test definitions

v2 api for configuration_templates and template_combinations

Added additional counter-tests to config templates

refs #2097 - update test to include stderr redirect

fixes #1944 - Listing VMWare virtual machines under Computer resources is slow.

fixes #1814 - converts sp_* attributes into a BMC interface class

this patch also includes the following

• added a new interfaces table, and STI objects to represent a NIC, BMC, Managed
  and a bootable interface.
• refactored DHCP/DNS orchestation code, so they can work on the...

fixes #1890 api host status

fixed broken test on ruby 1.9