added admin page
added admin static to static folder.
use separate root and url path for static files.
add bootstrap to static.
changed img list template page, add detail page. add seprate out videos
optimized the upload page.
add admin contrib.
rearrange the urls and views.
Now we have list and detail page for videos and imgs respectively. the
default home page is the imglist page for now.
removed these files.
add top bar to css. decorate the pages a little bit.
add some test pictures.
test script
merge