Update ZVB Changelog

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After doing some searching for those that wanted a change log for the update. I've found the change log that Verizon published. Verizon calls it benefits from the update but i'll just call it a change log.

Improvements:
+ Enjoy preloaded applications like City ID, Skype, My Verizon,
and Corporate Directory.
+ Updated Backup Assistant application.
+ Enhanced ability to pair Ally with multiple Bluetooth