Fix archive foolz search URL
Can pass in --host and --port (and --help)
config.PID_FILE and --pid config
Added #8ball randomised wisdom dispenser
Add opts.js to server deps
Added sample init script

Closes #65.
Log unexpected ffmpeg output
Detect old ffmpeg that can't hide banner
WebM audio option

Fixes #58. Addresses #66.
resize_image passes back destination
Clarify composited spoiler check
WebM audio thumbnails

Thumbnails for uploaded WebM videos with audio are overlayed with an image
that indicate the video contains sound. Such thumbnails count as composite
spoilers.
More accurate messages on bad WebMs
Correct config example to WEBM_AUDIO_SPOILER
StillJob for producing ffmpeg video stills

Closes #67.
Merge remote-tracking branch 'samu/master'