0.8.5
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1. Renamed sample project to arjex.
2. Unitee ceases to be a separate entity. It is replaced now with the word engine. The new engine as it develops will be based on python's built-in unittest module for better compatibility with test projects in the wild and its open source plugin system.
3. Following unitee related files have been removed for now from Arjuna:
    - arjuna/core/utils/etree_utils.py
4. unitee related calls and tpi entries removed.
5. changed header.
6. 