making sparse_mode default

Author: carsen-stringer

setup.py

@@ -5,7 +5,7 @@
 
 setuptools.setup(
     name="suite2p",
-    version="0.7.0",
+    version="0.7.1",
     author="Marius Pachitariu and Carsen Stringer",
     author_email="[email protected]",
     description="Pipeline for calcium imaging",