added basic user group creation
do not serialize the subject owner relation details
add user_ip field to classification and remove user presence validation

Classifications can be submitted by non-logged in users, track these via the user_ip field.
include the set_member_subject_id in the set member subject serialiser

SetMemberSerialiser currently masquerades as a subject serializer for the overloaded subjects_controller#index. A classification requires the set_member_subject_id to be set for context of the Subject to SubjectSet.
remove :destroy and :update routes for Classifications
add classifications_controller create action
ensure consistent usage of subject_ids and names
add user_group create specs for location header and invalid params
Merge pull request #110 from astopy/master

Add ENTRYPOINT.
Add OAuth trust level restrict api access based on an applications trust level
Add Authorization scope check and specs
Remove unused spec file
Don't override oauth applications route
Fix mri load path issue
fix typo to white_list
Merge pull request #114 from camallen/fix_classifcations_controller_typo

fix typo to white_list
Return 422 instead of 400 for incorrectly scopes token grants
Fix response_type checking in authorization controller
spec projects_controller destroy action
Merge pull request #116 from camallen/spec_project_destroy_action

spec projects_controller destroy action