Open new server wizard if there is no default server

* The server status panel displays a hyperlink and if no default server
  has text to that nature. The hyperlink opens the Servers view but if
  there is no default server then it also opens the new server wizard.
Add a preference for the last-resort default server version

* If there are no teiid servers defined then a last-resort default server
  version must be used in order to still provide the runtime client
  services to modelling.

* Replaces the hardcoded value with a preference that users can modify.

* Values limited to installed runtime client versions.