Add r flag

Author: jburel

components/antlib/scripts/parse_version

@@ -71,7 +71,7 @@ def snapshot_logic(omero_version):
     See gh-67 for the discussion.
     """
     m = re.match((
-        "^"
+        "r^"
         "(?P<BASE>.*?)"
         "(?P<STRIP>([-]DEV)?-\d+-[a-f0-9]+?(-dirty)?)"
         "(?P<ICE>-ice[0-9]+)?"