Changed 'Q' to 'Quality' for L1 files. Fixed ephm l1 file name
Set fill values fo l1 hkpg to match what is listed in the FILL_VAL attribute.
Added fill value for INT8
Merge branch 'fix_epoch' of https://github.com/wrexroad/barrel-cdf-generator into fix_epoch

Mergeing in the diagnostic fix_epoch branch with master after some other bugs were fixed.
Removed diagnostic output; Fixed problem with not accepting full range of values when creating time records; Added padding to MAXMS in case of week rollover correction; Fixed issue where the same time model was generated over and over instead of the correct model for a particular data set.