Bump version to 0.4.0

Author: tschijnmo

drudge/__init__.py

@@ -18,7 +18,7 @@
 from .clifford import CliffordDrudge, inner_by_delta
 from .utils import sum_, prod_, Stopwatch
 
-__version__ = '0.4.0dev'
+__version__ = '0.4.0'
 
 __all__ = [
     # Canonpy.

setup.py

@@ -40,7 +40,7 @@
 
 setup(
     name='drudge',
-    version='0.4.0dev',
+    version='0.4.0',
     description=DESCRIPTION.splitlines()[0],
     long_description=DESCRIPTION,
     url='https://github.com/tschijnmo/drudge',