RemoteViewsTarget feature requested on #242

Ability to load a bitmap into an ImageView of a Widget using
RemoteViews.

Example of usage on the following gist
https://gist.github.com/pavlospt/00242d5102ac8f76e169
Oh sorry I missed this! You can't generalize this class, you need a Bitmap so this needs to extend SimpleTarget<Bitmap>. It will avoid the cast below as well.