bump pywavefront version

Author: einarf

requirements.txt

@@ -3,7 +3,7 @@ moderngl==5.3.0
 pyrr==0.9.2
 Pillow==5.1.0
 pyrocket==0.2.7
-PyWavefront==0.4.0
+PyWavefront==0.4.1
 # https://github.com/einarf/PyWavefront/archive/binary-cache.zip#egg=PyWavefront
 
 # Optional

setup.py

@@ -31,7 +31,7 @@
         'pyrr==0.9.2',
         'Pillow==5.1.0',
         'pyrocket==0.2.7',
-        'PyWavefront==0.4.0',
+        'PyWavefront==0.4.1',
         # 'pygame==1.9.3',
     ],
     entry_points={'console_scripts': [