libgnome 2.20.1

* Don't distribute built schemas (Christian Persch)
* Updated translations:
  - Assamese (Amitakhya Phukan)
  - Bengali (Khandakar Mujahidul Islam)
  - Canadian English (Adam Weinberger)
  - Catalan (Gil Forcada)
  - Dutch (Vincent van Adrighem)
  - Italian (Francesco Marletta)
  - Korean (Changwoo Ryu)
  - Lithuanian (Gintautas Miliauskas)
  - Norwegian bokmål (Kjartan)
  - Norwegian nynorsk (Kjartan)
  - Portugese (Duarte Loreto)
  - Sinhala (Danishka Navin)