message: feat(GUI): display drive name and description in tooltip
  In the main page we show the drive description, and on hover a tooltip
  shows the drive name. The tooltip behaviour is changed to show both,
  un-truncated.
  Closes:
  Changelog-Entry: Add the un-truncated drive description to the selected drive step tooltip.
diff: ng-class="{
  'text-disabled': main.shouldDriveStepBeDisabled()
  }"
  - uib-tooltip="{{ main.selection.getDrive().name }}">
  + uib-tooltip="{{ main.selection.getDrive().description }} ({{ main.selection.getDrive().name }})">
  <span class="step-drive step-name">
  <!-- middleEllipses errors on undefined, therefore fallback to empty string -->
  {{ (main.selection.getDrive().description || "") | middleEllipses:11 }}
  