Fix npm sync regression

[chadwhitacre]

Part of #4148.

#4148 (comment)

[chadwhitacre]

Blech. "Failing test" didn't fail. Failed locally, I promise! :-/

[chadwhitacre]

The tests are not being skipped.

https://travis-ci.org/gratipay/gratipay.com/builds/174399249#L1150-L1151

Both of those are failing for me locally:

_______________________________________ Tests.test_rf_fetches_a_readme _______________________________________
Traceback (most recent call last):
  File "/Users/whit537/personal/gratipay/gratipay.com/tests/py/test_npm_sync.py", line 95, in test_rf_fetches_a_readme
    readmes.fetch(self.db, fetch)
  File "/Users/whit537/personal/gratipay/gratipay.com/gratipay/package_managers/readmes.py", line 93, in fetch
    threaded_map(Fetcher(db, _fetch), dirty, 4)
TypeError: Fetcher() takes exactly 1 argument (2 given)
______________________________________ Tests.test_rp_processes_a_readme ______________________________________
Traceback (most recent call last):
  File "/Users/whit537/personal/gratipay/gratipay.com/tests/py/test_npm_sync.py", line 124, in test_rp_processes_a_readme
    readmes.process(self.db)
  File "/Users/whit537/personal/gratipay/gratipay.com/gratipay/package_managers/readmes.py", line 97, in process
    dirty = db.all('SELECT id, package_manager, name, description, readme_raw '
  File "/Users/whit537/personal/gratipay/gratipay.com/env/lib/python2.7/site-packages/postgres/__init__.py", line 548, in all
    return cursor.all(sql, parameters)
  File "/Users/whit537/personal/gratipay/gratipay.com/env/lib/python2.7/site-packages/postgres/cursors.py", line 145, in all
    self.execute(sql, parameters)
  File "/Users/whit537/personal/gratipay/gratipay.com/env/lib/python2.7/site-packages/psycopg2/extras.py", line 288, in execute
    return super(NamedTupleCursor, self).execute(query, vars)
ProgrammingError: syntax error at or near "BY"
LINE 1: ... packages WHERE readme_needs_to_be_processedORDER BY package...
                                                             ^

==================================== 2 failed, 4 passed in 14.77 seconds =====================================

[chadwhitacre]

I think Travis pulled the wrong commit? Restarting ...

[chadwhitacre]

Now it's got the right commit ...

[chadwhitacre]

There we go! 👍

[chadwhitacre]

Once travis is green I'm going to merge and deploy this so the next scheduler run picks it up. Then I'll look at the other bug, the one in the fetcher.