Bumped version number to 0.4.1

Damian S. Steiger · Damian S. Steiger · commit 704cb171e06c · 2018-08-26T14:24:26.000+02:00
diff --git a/projectq/_version.py b/projectq/_version.py
@@ -13,4 +13,4 @@
 #   limitations under the License.
 
 """Define version number here and read it from setup.py automatically"""
-__version__ = "0.4"
+__version__ = "0.4.1"
