[TIMOB-2501] Android: UI.KEYBOARD_NUMBERS_PUNCTUATION constant causes return to be suppressed

Tested on android 1.4.X and 1.5.X, the following code demonstrates that return is suppressed if keyboardType:Ti.UI.KEYBOARD_NUMBERS_PUNCTUATION is set. If you comment out this line, the correct, default behaviour (where a new line is inserted when return is pressed) is observed.

var win = Ti.UI.createWindow({  
    backgroundColor:'white',
    navBarHidden:false,
    title:'This is window 1'
});

var ta1 = Titanium.UI.createTextArea({
    value:'I am a textarea',
    height:70,
    width:300,
    keyboardType:Titanium.UI.KEYBOARD_NUMBERS_PUNCTUATION,  // problem
    top:10
});
win.add(ta1);

var l = Titanium.UI.createLabel({
    text:'Text area tests.',
    font:{fontSize:14},
    left:10,
    top:100,
    width:300,
    height:'auto'
});
win.add(l);

ta1.addEventListener('change',function(e)
{
    l.text = 'change fired, value = ' + e.value;
});

win.open();

Note that other constants don't seem to cause the same issue, for example keyboardType:Ti.UI.KEYBOARD_ASCII, although I haven't tested them all.