Awareness about gateway changes

[ejhernandez@…]

Currently, eBox traffic shaping module does not recognize any change in the gateway list. That is, the update data from gateway table is not checked from the traffic shaping module.

A typical bug which this situation triggers can be reproduced as it follows:

1. Create a gateway
2. Create some traffic shaping rules for the interface which the gateway belongs to
3. Delete the gateway
4. The traffic shaping module becomes inconstent

[ejhernandez@…]

Reschedule

[ejhernandez@…]

(In [8306]) First attempt to become ModelManager? multi model instances with the same model template. Fixing some bugs on DataTable? as well refs #753

[ejhernandez@…]

(In [8307]) * Become TrafficShaping? module a model provider

• A network observer when a iface is changed
• An observer from GatewayTable? on network module

refs #753

[ejhernandez@…]

(In [8315]) * An index is set in TestTable?

• Fixing some bugs in ModelManager? using a new unit test

refs #753

[ejhernandez@…]

(In [8316]) _inferModuleFromModelName now works correctly refs #753

[ejhernandez@…]

(In [8319]) Now when a iface is freed, the model is removed from model manager. RuleMultiTable? now uses tableBody mason tmpl refs #753

[ejhernandez@…]

(In [8320]) Change template from tableHeader to tableBody to deprecate tableHeader refs #753

[ejhernandez@…]

(In [8328]) Now traffic shaping module is awared about changes on Gateway table at Network module refs #753

[ejhernandez@…]

(In [8329]) * Added printableName() attribute to an eBox module

• Model manager: modelActionTaken return a string to be shown
• Change warnOnChangeOnId and warnIfIdIsUsed from DataTable? to ModelManager?
• Added contextName and printableContextName to support differences among different model instances from the same model template using index parameter to distinguish them and the module which instanced the model
• Added force parameter to delete and update notify callbacks
• Setting messages to show when a dependant model has changed something when an observable model has changed
• Updated dataInUse template to force change row in a model

All closes #753 (spent 20.5)

[ejhernandez@…]

(In [8330]) Fixing code on removeRule refs #753