Add missing max_listens_per_region to [LL_Functions] config section in OpenSimDefaults.ini + explanation.
Add missing max_listens_per_region to [LL_Functions] config section in OpenSimDefaults.ini + explanation.

This setting controls the maximum number of listeners in a region

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