Thumbnail images are now loaded after the text. Each image appears one
by one when it's loaded
Image for each detailed article is now loaded only when the article is
opened, and loaded in its original size
Image in the ArticleDetail page is now cleared then downloaded each time
Images in ListView and in article view are now loaded simultaneously (2
AsyncTasks executed in parallel)
Using a CacheView for the convertView
Added comments and logs to the code
Merge branch 'master' of https://github.com/rubeus90/wonder-rss.git