CHANGES
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* Initial release

This is the initial release of Cerbererus. It contains the Cerbererus OpenFlow
controller for configuring layer 2 networks in a proactive fasion.

Features include:

* Basic API support
    * Update network configuration
    * Pull current network configuration
    * Rollback to a previous configuration
* Rollback support
    * Rollback to the last working network configuration
    * Old configs are kept, so there are multiple network configurations to rollback to
* Fail state support
    * When a deployment fails, the network is rolled back to the last network configuration
    * Failed configs are kept seperately