NetworkingOptions does not read the settings correctly

1. The NetworkingOptions getBoolean and getInteger methods use the Properties.containsKey method to decided if a setting has been set. These methods are not aware of the default properties (passed through the Properties(Properties) constructor. In the case of initiators, this means anything in the default section of the config will be ignored.

2. For acceptors, the Properties passed to NetworkingOptions are those for the default section. The session-specific settings are not passed and are never used.