Added robots.txt to prevent erroring requests.
Changed routes for static files.
Increased default expiration for static files from 10 minutes to 5 days. Increased expiration for robots.txt from 10 minutes to 1 hour.
Fixed routing problem where ./webroot/dev-js/ directory wasn't accessible. Increased default expiration for static files from 5 days to 7 days to satisfy Google Page Speed recommendations.
Fixed problem where stylesheet for IE wasn't accessible.
Stopped serving apple-touch-icon.png, started serving apple-touch-icon-precomposed.png because icon is actually precomposed.