Use callback in Mashify middleware.
Update gemspec for Faraday 0.9.0
Fix Proxy test for all current Faraday versions
Fix Mashify test to work with Faraday callback
Only patch Multipart-Post if neccessary, don't hardcode content-type
Remove errant "require 'pry'"
Add a link to ActiveForce on the readme.

Link to ActiveForce, a gem based on a [gist from @ejholmes](https://gist.github.com/ejholmes/5154415) that wrap Restforce in an ActiveRecord like functionality.
Merge pull request #128 from eloyesp/patch-1

Add a link to ActiveForce on the readme.
Merge pull request #124 from crisply/dan/faraday-0.9

Update code for Faraday 0.9
Bump version.
testing
update to api v30.0
Update config.rb
Update mash.rb
Update mash.rb
bump version?
force it to use mashify