update to 1.64

- 1.62 2022-05-22 Added link to AccelStepper - The Missing Manual.
- Fixed a problem when setting the maxSpeed to 1.0 due to incomplete initialisation. Reported by Olivier Pécheux.
- 1.63 2022-06-30 Added virtual destructor at the request of Jan.
- 1.64 2022-10-31 Patch courtesy acwest: Changes to make AccelStepper more subclassable. These changes are largely oriented to implementing new step-scheduling algorithms.

Author: waspinator

LICENSE

@@ -1,4 +1,4 @@
-This software is Copyright (C) 2008 Mike McCauley. Use is subject to license
+This software is Copyright (C) Mike McCauley. Use is subject to license
 conditions. The main licensing options available are GPL V3 or Commercial:
 
 Open Source Licensing GPL V3
@@ -14,4 +14,4 @@ Commercial Licensing
 
 This is the appropriate option if you are creating proprietary applications
 and you are not prepared to distribute and share the source code of your
-application. Contact info@open.com.au for details.
+application. Contact info@airspayce for details.