Fixes #813 - External usergroups can be linked to an LDAP auth source

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...

Fixes #6816 - pass oVirt quota as nil instead of "" to prevent server error

Fixes #215: Parameters can be saved without a value

fixes #6636, #6657, #6694 - add field length validations, extend audit field length

Fixes #2940: Unable to remove smart parameter with long name

i18n - extracting new, updating rails, pulling from tx

Refs #4478 - API doc strings marked for translation

Fixes #6693 - set parameters tab to error state and focus when validation fails

fixes #6529 allow to define IP suggestion per subnet