Sign in process : SignInActivity.java
		  SignUpActivity.java
		  RegisterHomeActivity.java
		  RegisterDestinationActivity.java
		  URL.java
		  APIResponseHandler.java
		  App.java
		  AccountManager.java
		  MainActivity.java
		  strings_activity_sign_up.xml
		  /activity_sign_up.xml
		  activity_main_home.xml
fix merge conflict : RegisterHomeActivity.java, RegisterDestinationActivity.java, activity_main_home.xml, activity_sign_up.xml