Adding ARDUINO version constant.
Adding ARDUINO version constant.



Former-commit-id: af0ff93dc11a64d2ba534684342ab6cb59ddb6f4

UECIDE/chipKIT-core,EmbeddedMan/chipKIT-core,chipKIT32/chipkit-core,adamwolf/chipKIT-core,UECIDE/chipKIT-core,ricklon/chipKIT-core,pontech/chipKIT-core,chipKIT32/chipkit-core,majenkotech/chipKIT-core,pontech/chipKIT-core,pontech/chipKIT-core,pontech/chipKIT-core,majenkotech/chipKIT-core,UECIDE/chipKIT-core,majenkotech/chipKIT-core,ricklon/chipKIT-core,EmbeddedMan/chipKIT-core,chipKIT32/chipkit-core,chipKIT32/chipkit-core,pontech/chipKIT-core,adamwolf/chipKIT-core,EmbeddedMan/chipKIT-core,ricklon/chipKIT-core,ricklon/chipKIT-core,adamwolf/chipKIT-core,adamwolf/chipKIT-core,majenkotech/chipKIT-core,EmbeddedMan/chipKIT-core,UECIDE/chipKIT-core,majenkotech/chipKIT-core,EmbeddedMan/chipKIT-core,pontech/chipKIT-core,EmbeddedMan/chipKIT-core,pontech/chipKIT-core,majenkotech/chipKIT-core,adamwolf/chipKIT-core,ricklon/chipKIT-core,chipKIT32/chipkit-core,ricklon/chipKIT-core,adamwolf/chipKIT-core,UECIDE/chipKIT-core,adamwolf/chipKIT-core,majenkotech/chipKIT-core,EmbeddedMan/chipKIT-core