Fix several compiler warnings (mostly shadowed stuff, missing includes).

examples/tex-open-terminal/tex-open-terminal-plugin.c

po/Thunar.pot

thunar/Makefile.am

thunar/sexy-url-label.c

thunar/thunar-application.c

thunar/thunar-chooser-dialog.c

thunar/thunar-column-editor.c

thunar/thunar-column-model.c

thunar/thunar-dbus-service.c

thunar/thunar-dnd.c

thunar/thunar-file.c

thunar/thunar-file.h

thunar/thunar-gio-extensions.c

thunar/thunar-io-jobs-util.c

thunar/thunar-io-jobs-util.h

thunar/thunar-io-jobs.c

thunar/thunar-shortcuts-model.c

thunar/thunar-standard-view.c

thunar/thunar-transfer-job.c

thunar/thunar-tree-model.c