passenger: set minimum OS requirement to Lion.

I have been building and using all the recent releases of Passenger, including the current one (4.0.50), in OS X 10.7.5 without problems. So, I am wondering why the minimal requirement is OS X 10.8 (see https://github.com/Homebrew/homebrew/pull/29684).

According to [Passenger's release notes](http://blog.phusion.nl/2014/05/29/phusion-passenger-4-0-44-released/), there was a compilation issue affecting Mountan Lion, which was subsequently fixed. It seems like the only reason for the requirement is that the fix has not been tested in Lion. If that is the case, may I ask to set 10.7 as the minimal version again?