setup.py: bump version of oxidized_importer to 0.2

Author: indygreg

setup.py

@@ -76,7 +76,7 @@ def build_extension(self, ext):
 
 setuptools.setup(
     name="oxidized_importer",
-    version="0.1",
+    version="0.2dev0",
     author="Gregory Szorc",
     author_email="gregory.szorc@gmail.com",
     url="https://github.com/indygreg/PyOxidizer",