ihara2525/rack-smartphone_detector — pull request #1 by robotvert (2013-01-09 08:31:43+00:00)
Title: Detect Opera Mobile as mobile browser on Android.

Prior to this Opera Mobile on Android would be thought to be an
Android Tablet because the UA includes Android but not "Mobile".
Don't deal with Opera Mini since it advertises itself as an "iPhone"

Note I also added the UA of Firefox mobile on Android, although it worked fine, to be explicit.