DeepaMehta Tags 1.1 Release.

Changes introduced with this release:

- Migration3 is new and active, assigning all types of this plugin
  to the "DeepaMehta" (default) workspace.
- Compatible with the DeepaMehta Webclient
  A new multi_renderer for tags allows assignment of existing tags,
  dereferencing of previously assigned tags and creation of new tags
  on the fly with support for autocompletion as you type labels.
- Provides a TaggingService, allowing to fetch all Topics of one type
  which are related to a number of tags, incl. RESTful service methods.