Correct visibility of various widget methods
Remove link to old forum from the release docs
Link to the static API docs and separate out latest docs

Since this is the official release documentation for a version, we should
link to the static API documentation for this version, rather than the
latest online version as there is the potential for confusion.

I've separated the list of links into two categories:
* those of immediate significance for someone using the release; and
* information on the latest release, and contributing to YUI.
Add links to YUI on GitHub
Remove details on src directory from release docs

The release does not actually include the src directory any more so there
is no need to mention it in the list of directories, or how to rebuild
modules using Shifter from it.
Correct list of default log categories
YUI/Loader: Build.
Fix #1364 - Avoid creating link elements in case of invalid value

In case of invalid value passed to _getLinkedCSS we should skip
creating link element to avoid unnecessary browser request.
fixed plugin doc
assets/myplugin.js.txt read "destroy() will call initializer()"
Fixed ButtonGroup.enable()
the `disabledChange` listener always disabled the buttons, never enabled them
Typo fix
Merge branch 'live-docs' into dev-master

Conflicts:
	build/yui-nodejs/yui-nodejs-min.js
	build/yui/yui-min.js
yql: Build, no min-changes
Merge branch 'live-docs' into dev-master
Merge branch '1364_frame_setLinkedCSS' into dev-master
frame: Add unit test for issue #1364
frame: Build - fixes #1364
panel: Change link to icon source files, fix #1335
Merge branch 'myplugin-docfix' into live-docs
Merge branch 'live-docs' into dev-master