Merge pull request #2 from jcxplorer/master

Encoding problems
chmod +x bin/apn
[Issue #4] Flattening notifications argument in Client#push, and adding better validation about incoming notifications
Bumping version to 0.1.1
Adding note about mission-critical sister projects

Adding note about Rack::PushNotification
Adding references to related CLI projects
Re-formatting code blocks
Adding explanation of project name