erlang-cowboy source package infomation

- Remove mp4 and ogv binary from source code 

  Erlang-bitcask's original source codes contains video data.
  The source package of Debian has deleted.

- Remove sourceless javascript (jquery.min.js).

-- Nobuhiro Iwamatsu <iwamatsu@debian.org> Mon, 28 Oct 2013 11:59:59 +0900
