# 0.00.23 (53813) Jul 6, 2011
7/6/11 New graphic display of 2D modeButtonArray. New mode icons on 1D slider array.
# 0.00.22 (53713) Jul 5, 2011
7/5/11 Minor changes. 2D modeButtonArray uses "filled cup" scheme.
# 0.00.21 (53586) Jun 29, 2011
6/29/11 Minor updates
# 0.00.20 (53337) Jun 21, 2011
6/21/11 2D modes working well.
# 0.00.19 (53141) Jun 14, 2011
6/14/11 2D array of masses and springs functioning OK.
# 0.00.18 (53098) Jun 13, 2011
6/13/11 2D array functiong OK.
# 0.00.17 (52835) Jun 8, 2011
6/8/11 Transverse mode added.
# 0.00.16 (52711) Jun 6, 2011