Removes pathes to jquery and bkviewer.js in manufest.js
Removes pathes to jquery and bkviewer.js in manufest.js

I'm not sure why Firefox allows bkviewer.html load them by <script> tag.
I need more study. I guess that is because they are loaded by a page
in an extension, not by a external web page.

alprut/bkviewer2,alprut/bkviewer2