fixed issue 1624:GoogleSQLAdapter has no driver property, thanks Felipe Meirelles

VERSION

@@ -1 +1 @@
-Version 2.6.0-development+timestamp.2013.08.09.13.37.02
+Version 2.6.0-development+timestamp.2013.08.09.14.13.07

gluon/dal.py

@@ -4373,6 +4373,7 @@ class GoogleSQLAdapter(UseDatabaseStoredFile,MySQLAdapter):
         self.pool_size = pool_size
         self.db_codec = db_codec
         self._after_connection = after_connection
+        if do_connect: self.find_driver(adapter_args, uri)
         self.folder = folder or pjoin('$HOME',THREAD_LOCAL.folder.split(
                 os.sep+'applications'+os.sep,1)[1])
         ruri = uri.split("://")[1]
@@ -4403,6 +4404,10 @@ class GoogleSQLAdapter(UseDatabaseStoredFile,MySQLAdapter):
     def execute(self, command, *a, **b):
         return self.log_execute(command.decode('utf8'), *a, **b)
 
+    def find_driver(self,adapter_args,uri=None):
+        self.adapter_args = adapter_args
+        self.driver = "google"        
+
 class NoSQLAdapter(BaseAdapter):
     can_select_for_update = False