v0.8.0

Significant documentation updates as well as configuration file updates to support local databases.

What's Changed

• [MRG] Fix download_matching_genomes target by @ctb in #125
• [MRG] extract the depth summary code from the Snakefile to a script by @ctb in #128
• [MRG] several minor updates and cleanup by @ctb in #129
• [MRG] support local genome collections (including private genomes) by @ctb in #130

Full Changelog: v0.7.4...v0.8.0