renamed FMODEs; rename file_mode and safeio to fmode and strictio;
made dill.diff 2.5-compatible and disabled; move IOError to ValueError/FNFError
move ctypes RuntimeError to ImportError; test_file.throws takes an instance


git-svn-id: svn+ssh://svn.mystic.cacr.caltech.edu/pathos/dill@719 8bfda07e-5b16-0410-ab1d-fd04ec2748df
Merge branch 'master' of https://github.com/uqfoundation/dill