Added User-Agent header to better comply with standard HTTP recommendations.
Added User-Agent header to better comply with standard HTTP recommendations.

mtodd/halcyon,DouglasAllen/halcyon,bsimpson/halcyon,DouglasAllen/halcyon,DouglasAllen/halcyon,mtodd/halcyon,bsimpson/halcyon,bsimpson/halcyon