Added basics for an aynctask
Basic dialog started
SendChallenge almost working
Merge branch 'master' of github.com:vinitnayak87/amazonpaddle

Conflicts:
	android/bin/AmazonPaddle.apk
	android/bin/classes.dex
	android/bin/classes/com/amazon/paddle/MenuActivity.class
	android/bin/classes/com/amazon/paddle/RegistrationActivity.class
	android/bin/resources.ap_
	android/gen/com/amazon/paddle/R.java
	android/res/values/strings.xml