v0.3.1

• Quietly increase upload limit to 1.25 GB (we won't publicize this just yet, as very big files are rather slow. They are best uploaded during less active parts of the day)
• Improve parsers to better recognize field names from the EBI GWAS catalog file format, and add better error messages to the ingest log when given unsorted data
• Collect general metrics on which file types people are using with "add tabix" mode (nothing specific, just file type)