** Fixed bug that caused findRole method of UserSchoolDataController to
return uninitialized roles
** Added an entity initiator for Role school data entity
** Added create method into WorkspacERoleEntityDAO
** Added create method into EnvironmentRoleEntityDAO
** Added role school data source and role identifier getters into
WorkspaceUser school data entity
** Added role initialization into WorkspaceUserSchoolDataEntityInitiator
** Added methods for finding Workspace by Workspace schoolDataSource and
identifier
** Added roleSchoolDataSource and roleIdentifier into
createWorkspaceUser method of WorkspaceSchoolDataBridge
** Added method for finding workspace by schoolDataSource and identifier
into WorkspaceSchoolDataController
** Implemented workspace user role handling in school data mock plugin
** Changed data scripts to work with changed in school data mock plugin
** Fixed a bug in createWorkspaceUser method of
MockedWorkspaceScchoolDataBridge that caused it to crash
** Added hard coded workspace student role definition into joinCourse
method of CourseRESTService