and #549119 – no space in /tmp given a not informative error

	Handle temporary location errors and image creation errors by asking
	the user if he wants to set another location.
	We now also detect permission problem (as well as space error) for images.

	Fix some small things in the mean time
	- malformed strings
	- a small bug in burn-job.c not returning correct value on error
	- a small bug in checksum-file plugin that was overwriting errors

	* src/brasero-burn-dialog.c (brasero_burn_dialog_image_error),
	(brasero_burn_dialog_setup_session):
	* src/brasero-data-disc.c (brasero_data_disc_unknown_uri_cb):
	* src/brasero-drive-properties.c
	(brasero_drive_properties_set_tmpdir_info),
	(brasero_drive_properties_init):
	* src/brasero-image-properties.c (brasero_image_properties_init):
	* src/brasero-marshal.list:
	* src/brasero-session-cfg.c (brasero_session_cfg_update):
	* src/brasero-sum-dialog.c (brasero_sum_dialog_download):
	* src/burn-job.c (brasero_job_check_output_volume_space),
	(brasero_job_get_tmp_file):
	* src/burn-session.c (brasero_burn_session_get_tmp_dir),
	(brasero_burn_session_get_tmp_file):
	* src/burn.c (brasero_burn_ask_for_location),
	(brasero_burn_run_imager), (brasero_burn_class_init):
	* src/burn.h:
	* src/plugins/cdrkit/burn-genisoimage.c
	(brasero_genisoimage_read_stderr):
	* src/plugins/cdrtools/burn-mkisofs.c
	(brasero_mkisofs_read_stderr):
	* src/plugins/checksum/burn-checksum-files.c
	(brasero_checksum_files_create_checksum):
	* src/plugins/libburnia/burn-libisofs.c
	(brasero_libisofs_write_image_to_file_thread):

svn path=/trunk/; revision=1585