v0.8.5

This is a minor release with several small improvements and bugfixes.

Features and improvements:

• 404 pages are now shown instead of error pages if a post does not exist. (#463) [@wooddar]
• Thumbnails of posts are stored in the database, but if they are too large, the base64 encoded images are truncated and thus corrupted. This patch causes the post thumbnail to be resized before being added to the index. (#464) [@matthewwardrop]

Bugfixes:

• Indexing routines are now initialised at time of deployment, rather than instantiation, improving user experience with commands like reindex in the knowledge_repo script. (#465) [@matthewwardrop]
• kp ... preview did not correctly disable indexing when launching the preview server [@matthewwardrop]