Merge pull request #318 from DataBiosphere/wn-dev

PR for 0.5.1. release

Merge pull request #296 from DataBiosphere/dev

PR for 0.5.0 release

Merge pull request #293 from DataBiosphere/dev

PR for 0.4.13 release

Merge pull request #291 from DataBiosphere/dev

PR for 0.4.12 release

Merge pull request #288 from DataBiosphere/dev

PR for 0.4.11 release

Merge pull request #281 from DataBiosphere/dev

PR for 0.4.10 release

Merge pull request #261 from DataBiosphere/dev

PR for 0.4.9 release

Merge pull request #254 from DataBiosphere/dev

PR for 0.4.8 release

Merge pull request #243 from DataBiosphere/dev

PR for 0.4.7 release

Merge pull request #235 from DataBiosphere/dev

PR for 0.4.6 release