Returns accounts, statuses, hashtags arrays

Redirect /:username to /users/:username
Redirect /:username/:id to /users/:username/updates/:id
Updated API documentation and sponsors

Add ability to search accounts by display name

Make replies default to privacy settings of the status being replied to

StreamEntry model. Simply render Salmon slaps as they are needed

redis-backed "mentions" timeline as redundant (given notifications)

now return empty hash instead of throwing a 404 error. When following,
merge into timeline will filter statuses

with YAML-defined defaults. Add admin page for editing global settings. Add "site_description"
setting that would show as a paragraph on the frontpage