Changes with Aloha.Editor 1.2.13

Bugfix SUP-807

When custom attributes of linked repository items are
shown in the sidebar, the fields would not change when selecting an
external link after a link to a repository item had been selected.
This has been fixed now. The customer attribute fields in the sidebar
will be emptied for external links.

Bugfix SUP-845

The Word content handler now replaces unnecessary new line characters
added by Word with spaces. This fixes bug SUP-845, in which spaces got
lost, because new line characters are automatically stripped when using
the Text/HTML GCN tag part type.

Bugfix SUP-827

When a URL was pasted into the input field of the toolbar
using the context menu, the URL was not stored into the link, unless
a key was also pressed.
This has been fixed now.