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.
libstartup-notification checks in configure.in
ede-launch now uses startup notification protocol via ede-launch-sn helper
Added removal of /tmp/.evoke.lock at the startup, in case evoke crashed during sesssion
