Updated Marten.CommandLine to include  reference to System.Runtime.  This is required for dotnet build to work on non-Windows platform
Updated Marten.CommandLine to include  reference to System.Runtime.  This is required for dotnet build to work on non-Windows platform

mysticmind/marten,JasperFx/Marten,ericgreenmix/marten,mdissel/Marten,mysticmind/marten,JasperFx/Marten,ericgreenmix/marten,ericgreenmix/marten,JasperFx/Marten,mdissel/Marten,ericgreenmix/marten,mysticmind/marten,mysticmind/marten