3.4.2
=====
* Mirror Evolution calendar settings into our own schema [Owen; #674424]
* gdm: don't fail if fprintd unavailable [Ray; #675006]
* Fix broken extension loading [Owen, Alexandre; #670477]
* Fix filtering of Empathy notifications [Guillaume; #675370]
* telepathyClient: Ignore invalidated channels [Guillaume; #677457]
* popupMenu: Fix freeze when appMenu is not populated in one go [Alban; #676447]
* mount-operation: fix exceptions when showing password entry [Cosimo; #678428]
* Misc. fixes [Guillaume, Jasper, Rico; #677441, #676175]

Contributors:
 Alban Browaeys, Cosimo Cecchi, Guillaume Desmottes, Alexandre Rostovtsev,
 Jasper St. Pierre, Ray Strode, Owen Taylor, Rico Tzschichholz

Translations:
  OKANO Takayoshi [ja], Changwoo Ryu [ko], Jonh Wendell [pt_BR],
  Luca Ferretti [it], Sandeep Sheshrao Shedmake [mr], Takanori MATSUURA [ja],
  Andika Triwidada [id], Mantas Kriaučiūnas [lt], Nilamdyuti Goswami [as]