Don't try numarray and Numeric to get uint* data types

Neither numarray nor Numeric provide the types uint8, uint16 or uint32. Trying
to use them without having numpy installed will cause an AttributeError.

Author: Fayvel Victor

src/m64py/SDL/array.py

@@ -9,7 +9,7 @@
 from ctypes import *
 
 # Arrange these in order of preference
-_array_names = ('numpy', 'numarray', 'Numeric')
+_array_names = ('numpy')
 
 def _import_arrays(array_names, locals):
     default_array = None