v0.2.1-GPU-0.3

What's Changed

• Added compiled PTX's for sm_75 and sm_86 (16xx and 30xx) [Demisrael]
• Improved OpenCL miner
• Added binaries for specific targets. Specify --opencl-amd-binary to try it out
• Added lean nonce-generation for lower memory consumption (experimental)
• Added HiveOS integration on release (experimental) [Merlin]

Breaking Changes

• -t now defaults to 0