* Mylyn provides an abstraction and eclipse IDE integration such that
  different issue trackers can be controlled through the same UI.
* Add the latest p2 repository for the mylyn plugins.
* Add the mylyn incubation p2 repo to provide the web connector.
* Copy a preconfigured settings file into the workspace since oomph does
  not allow to configure the majority of the required attributes to
  configure the web connector.
* The preconfigured configuration defines the AF3 redmine repository and
  installs two queries: all tasks and those assigned to the individual
  developer.
* The configuration is based on the REST API of redmine and requires the
  developer to generate and enter an API key.

Issue-Ref: 3406
Signed-off-by: Alexander Diewald <diewald@fortiss.org>