refactor(db): cast return value to str (#78)

Author: César Román

Diff for: src/incendium/db.py

@@ -91,7 +91,7 @@ def status(self):
         # type: () -> String
         """Get connection status."""
         connection_info = system.db.getConnectionInfo(self.database)
-        return connection_info.getValueAt(0, "Status")
+        return str(connection_info.getValueAt(0, "Status"))
 
 
 class Param(object):