Adds a new DataType to Umbraco.
When added to a form that has the Umbraco.Tags control on it, the Lister will display a dropdown containing the 10 most used tags in that group.
The dropdown is multiselect so you can add multiple tags to the Umbraco.Tags control all at once.
Hopefully someone will find this or the code useful.
v1.0.1 added configuration options
Number of Tags: The number of tags to show in the dropdown
Group override: If the value is blank it will use the group defined on the pages TAG control, enter a group name to override the page group.
v1.0.3 added support for multiple lists on a page