Release version 6.0.2

The time has come! Version 6.0.2 introduces numerous and wide-reaching changes, including but not limited to:

1. Installing is easy! Anyone able to download an ISO can now use the instructions (which are opened automatically) to install
2. Partition-based install - thumb drives be gone :smile:
3. ≈80% faster installation time (thank you, new install method)
4. Driver installation instructions and troubleshooting info
5. A better and more stable rEFInd install/update system
6. More logging and error reporting - and much safer code
7. (not a feature of this utility but) wi-fi driver support added for Retina Macbook Pro out-of-the-box as part of the Elementary OS Freya beta
8. Clearer instructions
9. Much, much more!