Bump MAX_GLOBENTRIES up to 16384, so it is a power of two.  Add some comments explaining that this is an arbitrary limit.
Bump MAX_GLOBENTRIES up to 16384, so it is a power of two.  Add
some comments explaining that this is an arbitrary limit.

Requested by:  jkh

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase