Add total scripts count to "show threads"
Add total scripts count to "show threads"

However, this returns 0 on Mono (at least on 2.6.7)!  So not showing if it is zero.

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