version number to 0.51-3

version number to 0.51-3test5

version number to 0.51-3test4

version number to 0.51-3test3

version number to 0.51-3test2

version number to 0.51-3test1

version number to 0.51-2

version number to 0.51-1 (and tweak audio dialog and wxp build script)

Oops, 51, not 52 (thanks Lucas)

version number to 0.51-0