NuCivic/nucivic-internal#43
+ Adding site_read endpoint
+ Adding revision_list method.
+ Adding revision_list method and package_revision_list from code.
+ Adding CKAN schemas by entity
+ Adding group package show endpoint and alter query hook

NuCivic/nucivic-internal#43 Fixed multifield values not showing

NuCivic/nucivic-internal#43 Fixing $sub_result not defined var

NuCivic/nucivic-internal#43 Fixing not found error in package_list and group_list methods when there isnt results
NuCivic/nucivic-internal#58:
  + Test setup finished.
  + Adding data.json test workaround