[BUGFIX] Remove static fileCollectionStoragePid from categories to
collections action
[TASK] Extract MigrateCategoryRelationsService from task into a service
[TASK] Extract MigrateDamSelectionsTask into a Service callable by
the CommandController
[TASK] Remove migrateMediaTag Task and extract migrateMediaTag action
 into service
[TASK] Remove 'Migrate Relations' Task
[TASK] Remove damMigration Task. Move damMigration code into a service.
[TASK] Extract migrateMetadataAction to service
Merge pull request #23 from MaxServ/master

Move Tasks to Services