Add check so Ode does not try to simulate after it has been Dispose()'ed. Fixes exception that happens when shutting down region (improvements from last patch)
Add check so Ode does not try to simulate after it has been Dispose()'ed. Fixes exception that happens when shutting down region (improvements from last patch)

ft-/opensim-optimizations-wip-tests,OpenSimian/opensimulator,ft-/opensim-optimizations-wip,ft-/opensim-optimizations-wip,ft-/opensim-optimizations-wip-extras,ft-/opensim-optimizations-wip-extras,ft-/arribasim-dev-extras,BogusCurry/arribasim-dev,ft-/opensim-optimizations-wip-extras,ft-/opensim-optimizations-wip,TomDataworks/opensim,ft-/arribasim-dev-tests,OpenSimian/opensimulator,bravelittlescientist/opensim-performance,BogusCurry/arribasim-dev,M-O-S-E-S/opensim,BogusCurry/arribasim-dev,EriHoss/OpenSim_0.8.2.0_Dev_LibLSLCC,QuillLittlefeather/opensim-1,Michelle-Argus/ArribasimExtract,RavenB/opensim,QuillLittlefeather/opensim-1,ft-/opensim-optimizations-wip-extras,EriHoss/OpenSim_0.8.2.0_Dev_LibLSLCC,ft-/arribasim-dev-tests,ft-/arribasim-dev-extras,Michelle-Argus/ArribasimExtract,M-O-S-E-S/opensim,rryk/omp-server,ft-/opensim-optimizations-wip-tests,QuillLittlefeather/opensim-1,ft-/arribasim-dev-extras,rryk/omp-server,QuillLittlefeather/opensim-1,BogusCurry/arribasim-dev,justinccdev/opensim,OpenSimian/opensimulator,justinccdev/opensim,ft-/opensim-optimizations-wip-tests,justinccdev/opensim,M-O-S-E-S/opensim,ft-/opensim-optimizations-wip-tests,rryk/omp-server,RavenB/opensim,ft-/arribasim-dev-tests,QuillLittlefeather/opensim-1,ft-/arribasim-dev-extras,RavenB/opensim,EriHoss/OpenSim_0.8.2.0_Dev_LibLSLCC,RavenB/opensim,ft-/arribasim-dev-extras,EriHoss/OpenSim_0.8.2.0_Dev_LibLSLCC,Michelle-Argus/ArribasimExtract,ft-/opensim-optimizations-wip-extras,BogusCurry/arribasim-dev,M-O-S-E-S/opensim,EriHoss/OpenSim_0.8.2.0_Dev_LibLSLCC,justinccdev/opensim,TomDataworks/opensim,RavenB/opensim,M-O-S-E-S/opensim,RavenB/opensim,bravelittlescientist/opensim-performance,OpenSimian/opensimulator,ft-/opensim-optimizations-wip,Michelle-Argus/ArribasimExtract,OpenSimian/opensimulator,OpenSimian/opensimulator,ft-/arribasim-dev-tests,ft-/arribasim-dev-extras,rryk/omp-server,ft-/arribasim-dev-tests,bravelittlescientist/opensim-performance,rryk/omp-server,justinccdev/opensim,BogusCurry/arribasim-dev,QuillLittlefeather/opensim-1,TomDataworks/opensim,EriHoss/OpenSim_0.8.2.0_Dev_LibLSLCC,bravelittlescientist/opensim-performance,M-O-S-E-S/opensim,Michelle-Argus/ArribasimExtract,ft-/opensim-optimizations-wip-tests,Michelle-Argus/ArribasimExtract,EriHoss/OpenSim_0.8.2.0_Dev_LibLSLCC,TomDataworks/opensim,justinccdev/opensim,ft-/arribasim-dev-tests,QuillLittlefeather/opensim-1,RavenB/opensim,bravelittlescientist/opensim-performance,TomDataworks/opensim,rryk/omp-server,M-O-S-E-S/opensim,bravelittlescientist/opensim-performance,TomDataworks/opensim,TomDataworks/opensim,OpenSimian/opensimulator