fixes #2851 - refresh puppet classes on environment change

fixes #2837 add an interface to add repositories to kickstart, cleanup similar methods

Fixes #2826: only run set_code() on submit if the config template editor is already in diff mode

fixes #2373 - only reference unattended subnet path when in unattended mode

fixes #2797 - Submit the final code, not the diff in the config template editor

fixes #2803 - apipie docs, rabl definition matches conventions

fixes #2142 add Smart Parameters and Smart Class Parameters to API v2

fixes #2791 - ptable api was missing :layout and :os_family

minor correction after d47dfa9c35

Make the language in the LDAP auth edit more generic