defective event triggers

[FND]

TiddlyWiki's main function triggers various custom events (cf. #978), like so:

jQuery().trigger("loadShadows");

The use of an empty jQuery object here means no event handlers can registered to respond to these events.

Compare:

jQuery().bind("foo", console.log);
jQuery().trigger("foo");

jQuery(document.body).bind("bar", console.log);
jQuery(document.body).trigger("bar");

(related: #1076)

[FND]

fixed in changeset:12238 (using just document instead of document.body)

leaving ticket open for review