Publ v0.7.4, Authl v0.6.0

Released new versions of Publ and Authl today.

First, the Authl changes:

• Fixed some test coverage
• Changed Twitter user URLs to be stable (but less readable)
• Added profile_url field to user profiles to make up for the Twitter URL thing

And the Publ changes:

• Fixed image cache stale directory removal
• Fix ETag output
• Full-text search now properly excludes future articles
• Added a filename normalization tool
• Fixed an Internal Server Error that occurred from a malformed or expired bearer token (AutoAuth et al)
• Updated to Authl 0.6.0 and made use of the new profile_url field