v0.0.13

This is primarily a bug fix release, because v0.0.12 had broken URLs in the thing descriptions endpoint. It also adds a feature to the thing server interface and improves error handling when attempting to import Things from broken modules.

What's Changed

• Fix urls for affordances in the server thing descriptions by @julianstirling in #224
• Add call_async_task to thing_server_interface allowing access to BlockingPortal.call by @julianstirling in #225
• Raise the real import error when a thing cannot import by @julianstirling in #227
• Handle import errors more cleanly by @rwb27 in #226
• Preparing for v0.0.13 release by @julianstirling in #228
• Bump version number to v0.0.13 by @julianstirling in #229

Full Changelog: v0.0.12...v0.0.13