Updates to google-query.el, linux-kernel.el, and lj.el

Updates to google-query.el, linux-kernel.el, and lj.el

New Addition: footnote-balloons.el.  Display footnotes in balloon-help
frames.

google-query.el was made a lot simpler and more impervious to changes in the
way google displays results by simply calling browse-url instead of trying
to do raw HTTP in-house.

linux-kernel.el works again.

Removed all of the twitter stuff from lj.el

	* footnote-balloons.el: New.

	* README: Mention footnote-balloons.el

	* google-query.el (google-query): Complete refactoring.  Instead
	of trying to do it all "in-house" with #'open-network-stream and
	parsing process buffers, simply call #'browse-url on it.
	(google-query-process-results): Removed.
	(google-query-mode): Removed.
	(google-query-make-url-extents): Removed.
	(google-query-ext-map): Removed.
	(google-query-mode-map): Removed.
	(google-query-kill-buffer): Removed.
	(google-query-url-at-mouse): Removed.
	(google-query-url-at-point): Removed.
	(google-query-url-regexp): Removed.
	(google-query-debug): Removed.
	(google-query-mirror): Default to "https://www.google.com".
	(google-query-maxlen): Bump default to 1024.
	(google-query-version): Bump to 2.0

	* linux-kernel.el (linux-kernel-check-latest): Retrieve the info
	via #'curl:download.

	* lj.el (lj-music-mpd): Removed.
	(lj-music): Use #'mpd-now-playing
	(lj-twitter): Removed.
	(lj-twitter-flag): Removed.
	(lj-twitter-username): Removed.
	(lj-twitter-password): Removed.
	(lj-twitter-compress-url): Renamed to lj-compress-url.
	(lj-twitter-sentinel): Removed.
	(lj-twitter-update-status): Removed.

Signed-off-by: Steve Youngs <steve@sxemacs.org>