- so this adds a button to the templates dialog to install
  https://launchpad.net/ubuntu/+source/libreoffice-templates/0.1.20120814-0ubuntu2
  which is packed from
  http://cgit.freedesktop.org/libreoffice/templates
- could be packed and used like that on other distros
- disabled when service is not available

Change-Id: I55d5bada25693070aae5e5f9e0e77bf8aa52e982
Reviewed-on: https://gerrit.libreoffice.org/1071Reviewed-by: Björn Michaelsen <bjoern.michaelsen@canonical.com>
Tested-by: Björn Michaelsen <bjoern.michaelsen@canonical.com>