fixes #3553 - add "except" option to prevent puppet class import to select types of import

fixes #3925 - create apipie param_groups for API v2 to DRY documentation

fixes #3760 - API v2 define metadata @total for each controller

fixes #3515 - API handles not found objects with 404

fixes #3658 - support smart proxy's chef proxy feature

fixes #3853 - allow rabl template override to be specified

3853-taxonomy-rabl - changed style of override

fixes #3930 - refactoring of edit_self implementation.

fixes #3280 - authenticate returns true for API requests when login:false

fixes #3018 - API v2 metadata for pagination, search, order in index collection json response

fixes #3011 - default root node name for api collections json response to :results but make it configurable