[folks] (5 commits) Non-fast-forward update to branch wip/nielsdg/performance

[Niels De Graef <nielsdg src gnome org>]

The branch 'wip/nielsdg/performance' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  440798d... Cut down on the amount of owned variables
  605cb7b... edsf: Persona: Add get_string_property()
  d9bbaee... edsf: Avoid E.VCardAttribute.get_value()
  09da866... persona: Don't use string.replace

Commits added to the branch:

  2a0ac05... persona: Don't use string.replace
  64ab5aa... Cut down on the amount of owned variables
  08713ad... edsf: Persona: Add get_string_property()
  25d83d3... edsf: Avoid E.VCardAttribute.get_value()
  1792397... edsf: Avoid Gee.LinkedList in copy_contacts(_ids)