v1.3

[ejoerns]

Enhancements

• Add option stream_bundle=true to allow using RAUC's HTTP(S) bundle streaming capabilities instead of downloading and storing bundles
  separately. [Add HTTP Streaming Support #130]
• Make error messages more consistent. [config-file/test: make error messages more consistent #138]

Build System

• Switch to meson [Replace CMake by meson #113]

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This discussion was created from the release v1.3.