reduced memory usage on SMTP session.
changed the license of LibSylph from GPL to LGPL.
replaced md5.[ch] with public domain code in GNet.
moved more modules to libsylph.
fixed Turkish locale problem.
fixed broken PLAIN authentication.
implemented PLAIN authentication method for SMTP AUTH.
replaced intl.h with glib/gi18n.h.
Initial import of Sylpheed (GTK2 version).