v2.4.0

• Initial release of the finetune utility
• Remove stale references to VS 2015
• Add logging of build tool options
• Improve error reporting of compile failures
• Suppress alias analysis on emitted IR code
• Improve logging in ELL pythonlibs
• Remove volatile attribute from memcpy, memmove, and memset LLVM intrinsic calls
• Allow compilation of models with more than one input or output
• Fix parsing of boolean command-line arguments
• Add a RAM requirement for audio tutorial
• Add support for optimized models
• Fix ONNX import of no-op concat blocks
• Gallery updates for Pi3 specific ELL models
• Added documentation detailing ELL's versioning strategy