Update Unity to 2.5.0

[JanneKiiskila]

Summary

Please update Unity test framework from ThrowTheSwitch to version 2.5.0.

Reason being the earlier revisions do not have any LICENSE.txt in their root and this causes issues with some totally unrelated code as you do a BlackDuck review...

https://github.com/ThrowTheSwitch/Unity/tree/v2.5.0 - has LICENSE.txt vs.
https://github.com/ThrowTheSwitch/Unity/tree/v2.4.3 - no LICENSE.txt

Steps to reproduce

N/A

Specs

N/A