Silent 500 errors when plating samples

`maptest.ucsd.edu` presently has read issues with the `qiita.sample_10317` database table. This is not obvious to the user when plating samples as, in some cases the samples are flagged in red, in others, there is a blue stripe, and in others the samples appear valid (or no indication to suggest otherwise).

This particular issue is present due to a 500 error that appears to result from a permissions issue reading a table (though, oddly, it is possible to read other tables in the schema as evidenced by assigning a study)


```bash
AN ERROR HAS OCCURED!
Please copy the following into an issue in our github repository

Error
Error running SQL query: Query: SELECT sample_id FROM qiita.sample_10317 WHERE LOWER(sample_id) LIKE %s ORDER BY sample_id LIMIT %s Arguments: ['%10317.000004216%', 20] Error: permission denied for relation sample_10317

Traceback
Traceback (most recent call last):
File "/home/pmapper/labcontrol/labman/labman/db/sql_connection.py", line 586, in _execute cur.execute(sql, sql_args)
File "/home/pmapper/miniconda3/envs/labcontrol/lib/python3.5/site-packages/psycopg2/extras.py", line 141, in execute return super(DictCursor, self).execute(query, vars)
psycopg2.ProgrammingError: permission denied for relation sample_10317
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/home/pmapper/miniconda3/envs/labcontrol/lib/python3.5/site-packages/tornado/web.py", line 1590, in _execute result = method(*self.path_args, **self.path_kwargs)
File "/home/pmapper/miniconda3/envs/labcontrol/lib/python3.5/site-packages/tornado/web.py", line 3006, in wrapper return method(self, *args, **kwargs)
File "/home/pmapper/labcontrol/labman/labman/gui/handlers/study.py", line 53, in get res = list(study.samples(term, limit=20))
File "/home/pmapper/labcontrol/labman/labman/db/study.py", line 214, in samples return TRN.execute_fetchflatten()
File "/home/pmapper/labcontrol/labman/labman/db/sql_connection.py", line 391, in wrapper return func(self, *args, **kwargs)
File "/home/pmapper/labcontrol/labman/labman/db/sql_connection.py", line 735, in execute_fetchflatten return list(chain.from_iterable(self.execute()[idx]))
File "/home/pmapper/labcontrol/labman/labman/db/sql_connection.py", line 391, in wrapper return func(self, *args, **kwargs)
File "/home/pmapper/labcontrol/labman/labman/db/sql_connection.py", line 643, in execute return self._execute()
File "/home/pmapper/labcontrol/labman/labman/db/sql_connection.py", line 590, in _execute self._raise_execution_error(sql, sql_args, e)
File "/home/pmapper/labcontrol/labman/labman/db/sql_connection.py", line 535, in _raise_execution_error % (sql, str(sql_args), str(error)))
ValueError: Error running SQL query: Query: SELECT sample_id FROM qiita.sample_10317 WHERE LOWER(sample_id) LIKE %s ORDER BY sample_id LIMIT %s Arguments: ['%10317.000004216%', 20] Error: permission denied for relation sample_10317
```