Merge pull request #118 from creighton/master

adding import back in models
merged group into agent model-need to finish mgr
update name works-need to update members
handle updating members
refactored agent gen function
Merge branch 'master' of https://github.com/adlnet/ADL_LRS into stmt_object
added define permissions to gen
adding activity id and context activity id uri checks
need to implement making non-global agent
included define scope
Merge branch 'acturi' of https://github.com/creighton/ADL_LRS into stmt_object
catch if agent has no ifps or members
removed model tests
Merge pull request #119 from ljwolford/stmt_object

Stmt object-agent generation
fixed view's get of statement object and removed unique constraint on context:registration id
Merge pull request #120 from creighton/issues

fixed view's get of statement object and removed unique constraint on co...