Break up makemap

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Currently there is an hourly cron job that runs makemap, makeviewerconfig, and fileprocessor to keep the viewer up to date. makemap in particular is very intensive and slows down the server for about 10 minutes every hour, which is not ideal.

I think we should break up makemap into multiple scripts and then fine-tune the hourly update so we're only building essential mapfiles.

• Break out makemap until it is just a "container" script

So every hour the ForWarn 2 and 3 mapfiles are completely rebuilt, and new mapfiles are added for any new files. We could break this out into two processes: 1) "rebuild all mapfiles" and 2) "add new mapfiles". So once a day, in the middle of the night, #1 runs. But every hour we run #2. As far as I know, process #2 would be the only mapfile/makemap-related process that should run every hour.