v0.9.0

New features

• Add implementation of DICOM web services (WADO-RS, QIDO-RS and STOW-RS)
• Add emscripten wrappers

Improvements

• Update registry to 2017d (2017e has no registry changes)
• Improve Python wrappers of odil::Reader and odil::Writer: wrap reading and writing tags and elements
• Improve N-CREATE (thanks @ThibautSchmitt)
• Improve CI integration
• Documentation