Version 0.6.0

This is an intermediate release, enabling the production of heatmaps to visualize ranks and tighter compatibility between the standalone CLI and the qiime2 CLI. Now ranks can be directly imported as qiime2 objects.

In addition, the package has been renamed from rhapsody to mmvec. Furthermore the command mmvec has been changed to paired-omics.

This will be the last intermediate release before version 1.