* plugins/, tdb/, thunar-vfs/, thunar/: Fix several compiler warnings.

ChangeLog

plugins/thunar-apr/thunar-apr-image-page.c

plugins/thunar-sbr/thunar-sbr-case-renamer.c

plugins/thunar-sbr/thunar-sbr-date-renamer.c

plugins/thunar-sbr/thunar-sbr-insert-renamer.c

plugins/thunar-sbr/thunar-sbr-number-renamer.c

plugins/thunar-sbr/thunar-sbr-remove-renamer.c

plugins/thunar-sendto-email/main.c

tdb/tdb.c

tdb/tdbtool.c

thunar-vfs/thunar-vfs-io-jobs.c

thunar-vfs/thunar-vfs-io-local.c

thunar-vfs/thunar-vfs-io-trash.c

thunar-vfs/thunar-vfs-mime-legacy.c

thunar-vfs/thunar-vfs-mime-sniffer.c

thunar-vfs/thunar-vfs-path.c

thunar-vfs/thunar-vfs-thumb-jpeg.c

thunar/sexy-url-label.c

thunar/thunar-column-editor.c

thunar/thunar-column-model.c