[Implemented] #PB_OS_MacOSX_10_10

[Kukulkan]

This constant is missing.

http://en.wikipedia.org/wiki/OS_X#Versions

I think it is the same for #PB_OS_MacOSX_10_9 (at least for 5.24 LTS)

[kenmo]

It has been mentioned before:
http://www.purebasic.fr/english/viewtop ... =3&t=61137

I'm sure the team will add these new OS constants for the next version after 5.31.