2006-04-09 [colin] 2.1.0cvs21

2006-04-09 [colin]	2.1.0cvs21

	* src/prefs_customheader.c
		I prefer removing then freeing rather than the contrary
		(even if it doesn't change anything ;-)
	* src/prefs_account.c
		Fix bug #933 (Crash re-entering the custom headers list
		dialog in accounts prefs)
		The problem happened when cancelling the Account
		Preferences' dialogs - in which case we didn't do
		anything to the PrefsAccount * struct. In case of applying,
		the old ac_prefs was replaced with the tmp_ac_prefs we were
		working with in this dialog. The problem is that
		prefs_customheader.c, working on this tmp_ac_prefs, always
		changes the ->customhdr_list pointer, even when cancelled.
		So in case of cancelling the prefs_account dialog, we still
		have to update ->customhdr_list in the real account.