#1425: GValue warning fixed.
#1425: GValue warning fixed.


jof/shotwell,ritchiewilson/shotwell,polymeris/shotwell,abrauchli/shotwell,Sanva/shotwell-gsoc,abrauchli/shotwell,ritchiewilson/shotwell,polymeris/shotwell,jimbonator/shotwell,abrauchli/shotwell,Sanva/shotwell-gsoc,h4ck3rm1k3/shotwell,jof/shotwell,h4ck3rm1k3/shotwell,polymeris/shotwell,damianmoore/shotwell,h4ck3rm1k3/shotwell,jimbonator/shotwell,jof/shotwell,Sanva/shotwell-gsoc,damianmoore/shotwell,damianmoore/shotwell,jimbonator/shotwell,ritchiewilson/shotwell