packaging: bump to v0.6.3

Merge pull request #160 from Oslandia/rde-fix-v0.6.3

packaging: v0.6.3.post1

Merge pull request #157 from Oslandia/rde-version0.6.2

Bump to version 0.6.2

packaging: change the package version

packaging: add a change log file

Merge pull request #101 from Oslandia/tanzania_datagen

Tanzania datagen

Merge pull request #64 from Oslandia/code_cleaning

Code cleaning

Merge pull request #30 from Oslandia/models

Models

Display Tensorboard image directly in README.md

Update README.md for 0.3 release