[TIMOB-16893] Android: textField and textArea enableReturnKey property not working

Issue

Currently when user enables as true the property enableReturnKey in a textField or textArea in iOS the button is disabled until the value is different from null while in the case of Android is not working even when the documentation specify that the property is enabled for Android in textfield ( http://docs.appcelerator.com/titanium/3.0/#!/api/Titanium.UI.TextField-property-enableReturnKey ) and textarea ( http://docs.appcelerator.com/titanium/latest/#!/api/Titanium.UI.TextArea-property-enableReturnKey ).

Test Case

var win = Ti.UI.createWindow();

var tf = Ti.UI.createTextField({ 
enableReturnKey:true, 
}); 

tf.addEventListener('return',function(){
	alert(tf.value);
});

win.add(tf);
win.open();

Steps to repro

Run the app Select the textfield Click on the Return Key Expected Result The Return key will be disabled preventing the action from being executed until the textfield value is different form null. Actual Result The result key is enabled from start allowing user to call the action even there no value on textfield