The GUI's state machine requires that, when reloading a capture after a

The GUI's state machine requires that, when reloading a capture after a
save, we post capture file callback events similar to the ones posted
when reading a capture - otherwise, the reload will leave the welcome
screen up.

Rename cf_cb_file_save_reload_finished to cf_cb_file_reload_finished,
add a cf_cb_file_reload_started callback, have them work similarly to
read_finished and read_started except that the reload uses "Reloading"
in the progress bar and status bar.

Clean up some indentation while we're at it.

svn path=/trunk/; revision=42764