upgrade gems and relax dependencies
downgrade httparty to work on ruby 1.9.2
Merge pull request #19 from afeld/upgrade-gems

upgrade gems and relax dependencies
add contributor guide
add contributor note about rekognition secret
test ruby 2.0.0 and 2.1.0
Merge pull request #20 from afeld/contrib

add contributor guide
Merge pull request #22 from afeld/ruby-2-1

test ruby 2.0.0 and 2.1.0 on Travis
Merge branch 'preserve-transparency' of github.com:brentertz/mustachio into brentertz-preserve-transparency
Merge
Change default image to one with transparency.  Also change the background color of the page so that is easier to tell that transparency has been preserved.
Add .ruby-version and specify ruby version in Gemfile
Add /ping route and scheduler:ping rake task that can be called from the Heroku scheduler add-on to prevent the app from idling.  Note that in order for this to work, you must set the HOST config variable on Heroku to equal your apps hostname and add the free scheduler add-on and configure it to run the 'scheduler:ping' task every 10 minutes.
Fix Rakefile error on Heroku.  Also had to enable `heroku labs:enable user-env-compile` and set RACK_ENV to production.
Strip excess markup on homepage
Default to random mustaches
Remove google analytics
Update Gemfile.lock