Tumble plugin doesn't show authentication pane: Closes #7691
Tumble plugin doesn't show authentication pane: Closes #7691

Glade files were not being installed by Makefile nor included in
the tarball.

jimbonator/shotwell,ritchiewilson/shotwell,ritchiewilson/shotwell,ritchiewilson/shotwell,jimbonator/shotwell,jimbonator/shotwell,abrauchli/shotwell,abrauchli/shotwell,abrauchli/shotwell