fixes #20 patch pHash to support alpha channel PNGs

[westonplatter]

After a lengthy dicussion on #20, I'm suggesting,

• merge and release the gem with this custom patched version of pHash
• re-release once pHash pulls in patch version and move back to official pHash codebase

The ext/phashion_ext/pHash-0.9.6-png-patch.tar.gz contains these changes, westonplatter/phash@ff255d2

[mperham]

FYI Grass is a huge file. You might want to use smaller images in the future, just to keep repo size down.

[westonplatter]

regarding the huge grass file - agreed.

[toadle]

@westonplatter How would I get this patch into my local gem? Remove and reinstall. Did this even get pushed to rubygems? (I'm new to this whole GEM-creation thing)

[westonplatter]

@toadle Great question!

Are you using Bundler? If so, modify the Gemfile's phashion declaration to be,

gem "phashion",
  :github => "westonplatter/phashion", 
  :tag => "v1.0.8" 

I pushed the v1.0.8 version to github.

@mperham If you're cool with pushing a release to RubyGems that would be awesome. Or you could add me as RubyGems author (via this http://guides.rubygems.org/command-reference/#gem_owner) and I can push a release too. I'm cool with either.

[toadle]

@westonplatter Thx for the hard work. I just installed the thing and RSPEC still greenlights. Great! I'll try the mean PNGs now :-)!