Update version number

Author: rhpvorderman

setup.py

@@ -111,7 +111,7 @@ def build_isa_l():
 
 setup(
     name="isal",
-    version="0.3.0",
+    version="0.4.0-dev",
     description="Faster zlib and gzip compatible compression and "
                 "decompression by providing python bindings for the isa-l "
                 "library.",

src/isal/__init__.py

@@ -29,4 +29,4 @@
     "__version__"
 ]
 
-__version__ = "0.3.0"
+__version__ = "0.4.0-dev"