arq5x/gemini — pull request #333 by bgruening (2014-09-29 12:59:20+00:00)
Title: use _safe_single_attr wrapper also for the map qualities

My merged VCF file ended up with an SQL error and I was able to track it down to the following variant.
This pull request should fix it.

```
'LOW', None, None, None, None, None, None, None, 8, None, 37.12, None, [0],
4, None, None, '11.92', 2, None, None, None, None, False,
None, None, None, False, True, '0.01', None, '0.07', None, '0.02',
None, None, None, None, False, None, None, None, 'T', 'R',
'R', 'R', 'R', 'T', None, None,
, '-0.53', '1.59']
```