Convert testControllers use of disabled flag to enabled instead of negating.
Convert testControllers use of disabled flag to enabled instead of negating.

opensim-org/opensim-core,opensim-org/opensim-core,opensim-org/opensim-core,opensim-org/opensim-core,opensim-org/opensim-core,opensim-org/opensim-core,opensim-org/opensim-core