Notable Changes
* Fixed bugs for firmware upload
* Fixed ACL entry functionality
* Added support MTU attribute to Interface class
* Fixed bugs for DHCP Relay class
* Added function to get firmware status
* Fully tested Port Security functionality
* Fixed OSPF active interface functionality
* Fixed readthedocs autogeneration
* New modules supported and fully tested:
* mac.py
* poe_interface.py
* static_mac.py