+@c `Essay' was born 2002-06-03 with this commit:
+@c tremolo segfault
+@c author: Han-Wen Nienhuys
+@c commit: 29262ca70c3d5209126150752fd3d804bef8e9a3
+@c file: Documentation/user/introduction.itely
+
+@macro copyrightDeclare
+Copyright @copyright{} 2002--2015 by the authors.
+@end macro
+
+@set FDL