Fixes bug in drawing API; Bump version to 0.4.1

Author: jsbueno

setup.py

@@ -3,7 +3,7 @@
 setup(
     name="terminedia",
     packages=find_packages(),
-    version="0.4.0",
+    version="0.4.1",
     license="LGPLv3+",
     author="João S. O. Bueno",
     author_email="gwidion@gmail.com",

terminedia/screen.py

@@ -283,6 +283,9 @@ def set_at(self, pos, pixel=None):
     def get_at(self, pos):
         return self[pos]
 
+    def get_raw(self, pos):
+        return self.shape.get_raw(pos)
+
     def reset_at(self, pos):
         """Resets pixel at given coordinate