Even if not entirely style clean the heavy nesting of the various vimage options along with all the defines made things really hard to read and get right; thus add comments for the #else/#endif cases.
Even if not entirely style clean the heavy nesting of the various
vimage options along with all the defines made things really hard to
read and get right; thus add comments for the #else/#endif cases.

Discussed with:		zec

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