Changes with Aloha.Editor 1.4.6

Bugfix SUP-2466

The link-plugin did not treat found link markup as a jQuery object resulting
in errors like “X.attr() is not a function” and undefined references. This
has been fixed.

Bugfix SUP-2266

Fixed whitespaces at the start or end of an inline editable not being properly handled when deleting text.

Bugfix SUP-2184

When Drag & Drop was disabled, blocks with duplicate IDs inside nested editables
would sometimes get the class ui-state-disabled preventing any interaction
with them.

Note that blocks with duplicate IDs are not supported in Aloha-Editor since this
implies invalid HTML markup. This fix is just intended to prevent certain subsequent
errors when duplicate blocks are already present.