#135 added console command to delete news by id
#135 added console command to delete user by id
#135 added console command to delete team by id
#135 added console command to delete results by year and geo
#135 fixed TeamCommand
#135 minor improvements
#135 Code style improvements
#135 when team is deleted, results for it are now deleted in afterDelete method
#135 codestyle improvements
#135 added afterDelete action for User model