index: Fix "Uncaught Error: Bootstrap requires jQuery"
index: Fix 404 Not Found for powered-by-tool-labs.png

> Failed to load resource: https://tools.wmflabs.org/static/img/powered-by-tool-labs.png
> the server responded with a status of 404 (Not Found)
index: Clean up

* Use tabs insteads of mixed tabs and spaces.
* Balance indentation.
* Add width/height attributes to <img> to avoid reflow.
* Keep username ireas lowercase, but capitalise it in the url
  (otherwise it is a useless HTTP 301 Redirect).
* Use underscore (_) instead of space in talk page link (usless
  HTTP 301 redirect).
* Move <script> to the bottom of the page.
Move resources for the main portal out of res/

These should not be cached as strongly because they're not
versioned.

Also merged them back into one file.
Implement copy-to-clipboard functionality

* Add ZeroClipboard library from http://zeroclipboard.org/
  Used by Bootstrap, e.g. "Copy" button on http://getbootstrap.com/css/
index: Move d3 to its alpbetical position between Chosen and gRaphaël

Follows-up 81eada4ba8f7c7aa.