Merge branch 'release/0.4.3'
views: Add a json response class

Issue #266.
Use JSON response for /s.json requests

Issue #266.
Use JSON response for /r/:id.json requests

Issue #266.
Merge branch 'issue/266'
Name response handlers after their HTTP methods

Issue #283.
log: Add notes for Saturday
Merge branch 'issue/283'
middleware: Use regular expressions to match IDs

Issue #299.
Merge branch 'issue/299'
tools/csv2yaps: Minor variable rename
tools/csv2yaps: Fix statement with no side-effects

Issue #300.
tools/csv2yaps: Remove cell quotation marks

Issue #300.
Merge branch 'issue/300'
Bump release version for '0.4.4'
Merge branch 'release/0.4.4' into stable