v0.2.0

• New elektronn2-profile command for profiling and finding optimal input sizes of already trained neural networks
• Default save directory of examples is now ~/elektronn2_training
• Disable initial debug plots on elektronn2-train startup (3eec2c9)
• Many improvements to U-Net-based config examples (8866e1b, 25cd87c)
• Move examples that are yet not ready to use to examples/wip
• Many documentation updates (New section on predictions, new detailed installation instructions, better index page, improvements to some docstrings)
• Correct many typos in code and docs
• Minor bug fixes