Dimensions axis wrong type error on win7 32bit

[mpsonntag]

Tests fail on win7 32bit for sampled and range dimension when adding the axis:

axis = nix_mx(func_name, obj.nix_handle, uint64(count), uint64(startIndex));

[jgrewe]

I guess we need to do what is said in the response here:
http://stackoverflow.com/questions/6585116/difference-between-size-t-and-mwsize-when-mexing-c-with-matlab