fixes #6636, #6657, #6694 - add field length validations, extend audit field length
Fixes #215: Parameters can be saved without a value
Fixes #6816 - pass oVirt quota as nil instead of "" to prevent server error
Fixes #6786 - Handle error when no taxonomy params get sent

Basically, no organization params are getting sent as the bug reporter is not
using json and not using wrapped params. You can also test this by doing:

curl -X POST http://localhost:3000/api/v2/organizations

This change prevents the following error from getting raised:

Processing by Api::V2::OrganizationsController#create as JSON
  Parameters: {"description"=>"biz", "name"=>"foo", "label"=>"bar", "apiv"=>"v2"}
Expire fragment views/tabs_and_title_records-1 (0.1ms)
Authorized user admin(Admin User)
undefined method `[]' for nil:NilClass (NoMethodError)
/usr/share/foreman/app/controllers/concerns/api/v2/taxonomies_controller.rb:75:in `params_match_database'
...
Fixes #813 - External usergroups can be linked to an LDAP auth source
Fixes #6620: Allow plugins to define a file to be included in test_helper.

For some plugins additions to the test_helper are needed to allow
the test suite to pass. This checks if a file test/support/foreman_support
exists and requires it after all the Foreman test setup is done.
Fixes #6566 - renaming a node now resets the certname on provision

If use_uuid_for_certificates is true, reuse the certname UUID value.
If false, then reset the certname if it does not match the hostname.
Fixes #6446 - Forbidding non-json POST/PUT requests in v2
fixes #6852 - `rake log` added to log ActiveRecord changes to stdout
fixes #6825 - refactor api/v2/filters_controller.rb to use find_optional_nested_object and add Authorizable to class Role
fixes #6855 - bump safemode gem version
fixes #6881 - check if in rake when validating template changes
fixes #6888 - remove duplicate presence validator causing two errors
fixes #6857 improve two-pane load times
fixes #6861 - provide a way to detect host group provisioning
Fixes #6844 - display v2 resources rather than v1 resources in /api/v2
Fixes #6794: Adds search parameter for template kinds
Fixes #5442 - extract suggest IP string for translation
Fixes #3303 - extract confirmation text on architecture deletion for translation
i18n - extracting new, updating rails, pulling from tx