Removed incomplete edialog.

Imported new and functional ede-dialog.
ede-help uses ede-dialog for error reports; xmessage is not used since some OS-es to not install it 
by default, e.g. OpenSolaris.
Removed obsolete ede-tip.conf.
Fixed background issue in ede-tip; background will now always be white so it can nicely blend with the image.
Commit fixed ede.desktop.in; previous commit was only renaming without content change.
Reduce some debug output in ede-autostart.

ede-dialog/Jamfile

@@ -0,0 +1,17 @@
+#
+# $Id$
+#
+# Part of Equinox Desktop Environment (EDE).
+# Copyright (c) 2009 EDE Authors.
+#
+# This program is licensed under the terms of the
+# GNU General Public License version 2 or later.
+# See COPYING for the details.
+ 
+SubDir TOP ede-dialog ;
+
+SOURCE = ede-dialog.cpp ;
+
+EdeProgram ede-dialog : $(SOURCE) ;
+TranslationStrings locale : $(SOURCE) ;
+EdeManual ede-dialog.txt ;