Merge release/0.1.0-preview4 into master

Author: untitaker

setup.py

@@ -11,7 +11,7 @@
 
 setup(
     name="sentry-sdk",
-    version="0.1.0-preview3",
+    version="0.1.0-preview4",
     author="Sentry Team and Contributors",
     author_email="[email protected]",
     url="https://github.com/getsentry/sentry-sdk",