Prevents circular wrapping when configured to do so and using .previous()

This looks like it was just an oversight -- the comment (and API!) indicates that this check should already exist.
Build sm-focusmanager.
Merge pull request #25 from bwg/editor-style

Keep that range around.  You never know when you'll need it.
Editor.Style: don't remove the root node when cleaning
Editor.Style: always fall back to computedStyle if style property isn't explicitly set
build gallery-sm-editor
Editor.Style: restore _getStyledAncestor
build gallery-sm-editor
Range: walk up the ancestor tree to find prev/next nodes when shrinking
build gallery-sm-range
Range: add selectNode/selectNodeContents wrappers around native range methods
build gallery-sm-range
Add very early cut of sm-dragdrop.
Build sm-dragdrop.
Rename Y.SM.DragDrop to Y.DragDrop.
Build sm-dragdrop.
Editor.DOM: Editor specific DOM utilities
Editor.Style: Implement Editor.DOM, better node cleaning
Merge branch 'editor-style'
Editor.Link: Initial commit. Link editing extension for Y.Editor