fixed reloading on hot pushes

Removed dependencies from phonegapapp variable. We test if we are in a cordova wrapper checking if cordova variable is defined.

Called MeteorRider.init instead of phonegapapp.meteorRider() wrapper. We do not need to pass meteorUrl parameter because it is setup in MeteorRider internal properties the first time the init method is called.

Fixed minor bug when Reload is not defined.