Update version for 1.0.0rc0

Author: mbmilligan

version.py

@@ -2,10 +2,10 @@
 # Distributed under the terms of the Modified BSD License.
 
 version_info = (
+    1,
     0,
-    9,
     0,
-    'dev', # comment-out this line for a release
+    'rc0', # comment-out this line for a release
 )
 __version__ = '.'.join(map(str, version_info))