Add column order in SqlTable._insert_query

_insert_query gets called with a query and dict of values such as:

  {'val': 1, 'lucky': False, 'name': 'one'}

Via bindValues(), we only assign a placeholder in the query string to a value,
so we get a query with bindings like:

  INSERT INTO Foo values(:lucky,:val,:name)
  {':name': 'one', ':val': 1, ':lucky': False}

So what we're executing is something like:

  INSERT INTO Foo values(false,1,"one")

However, if the column order in the database doesn't happen to be the order
we're passing the values in, we get the wrong values in the wrong columns.

Instead, we now do:

  INSERT INTO Foo (lucky, val, name) values(false,1,"one")

Which inserts the values in the order we intended.

With Python 3.6, this just happened to work before because we always passed the
keyword arguments in the table column order, and in 3.6 dicts
(and thus **kwargs) happen to be ordered:
https://mail.python.org/pipermail/python-dev/2016-September/146327.html

qutebrowser/misc/sql.py

@@ -187,7 +187,8 @@ class SqlTable(QObject):
     def _insert_query(self, values, replace):
         params = ','.join(':{}'.format(key) for key in values)
         verb = "REPLACE" if replace else "INSERT"
-        return Query("{} INTO {} values({})".format(verb, self._name, params))
+        return Query("{} INTO {} ({}) values({})".format(
+            verb, self._name, ','.join(values), params))
 
     def insert(self, values, replace=False):
         """Append a row to the table.