Adds Query.__rand__ and dal.Query.__ror__

Adds __rand__ == __and__ and __ror__ == __or__.

Also strips trailing spaces.

gluon/dal.py

@@ -9578,9 +9578,13 @@ class Query(object):
     def __and__(self, other):
         return Query(self.db,self.db._adapter.AND,self,other)
 
+    __rand__ = __and__
+
     def __or__(self, other):
         return Query(self.db,self.db._adapter.OR,self,other)
 
+    __ror__ = __or__
+
     def __invert__(self):
         if self.op==self.db._adapter.NOT:
             return self.first