[#58] Add version.js middleware with basic functionality.
[#58] Add platform name mapping for cordova.js.
[#58] Fix the cordova.js versions to match the app.
[#58] Update response formatting of supported cordova versions.
[#58] Register device and store into the session.
[#58] Organize cordova resources by version and platform.
[#58] POST /register to register a device.
[#58] Prefix all API paths with /__api__/ to avoid conflicts.
[#58] Extract device session data into a helper module.
[#58] Test /__api__/autoreload API.
[#58] Add register specs.
[#58] Add spec for session module.