[TIMOB-3093] Android: Non-cached network images will not appear in TiUIImageView

If our cache implementation does not cache an image (such as if the http header when retrieving that image says to not cache it), it fails to appear in the image view.

Failcase app.js:

Titanium.UI.setBackgroundColor('#000');
var win = Titanium.UI.createWindow({  
    title:'Test',
    backgroundColor:'#000',
    exitOnClose: true
});
var thisURL = "module=MultiSites&action=getEvolutionGraph&period=day&date=2011-01-04,2011-02-02&evolutionBy=visits&columns=nb_visits&idSite=7&idsite=7&viewDataTable=sparkline";

var paramArray = thisURL.split("&");
for(var i=0,ilen=paramArray.length;i<ilen;i++){
    var thisKeyValue = paramArray[i].split("=");
    thisKeyValue[1] = Ti.Network.encodeURIComponent(thisKeyValue[1]);
    paramArray[i] = thisKeyValue.join("=");
}
var encodedURI = paramArray.join("&");
var encodedURL = "http://demo.piwik.org/index.php?" + encodedURI;
Ti.API.info(encodedURL);

var imageView = Ti.UI.createImageView({
    image: encodedURL
});
 
win.add(imageView);
win.open();