UI bundler switched to rewritten version
switched to a 0.2.0 release of HTML_bundler
Merge pull request #44 from jkowalleck/fix-40

UI bundler switched to rewritten version
implemented /list function to display all collected images
only images with (jpeg|jpg|png|gif|JPEG|JPG|PNG|GIF) will be displayed now
inserted /backlist and moved /list to /imagelist
updated readme
implemented /reset and /flush
updated documentation, fixed retrun values on /flush and /reset