This allows files to be processed individually, and only updathose files missing weather data, normalization, etc.
Generates predictions using individual files, thereby requiring about 1% of the RAM of the previous version.
Includes min, max, and percentile estimates for each five-minute prediction.  Also includes storage of constants as a dictionary for cleaner coding
Now incorporating multiple weather sites, choosing the nearest sensor for any given roadway's average lat/lon.
merge conflict resolution and linux compatibility