Bump version to 3.2.2

# deew 3.2.1:

- handle `-master` in dee's version string

# deew 3.2.0:

- add Windows 7 support with custom Python build:
  https://github.com/adang1345/PythonWin7

# deew 3.1.3:

- fix #37: Only show basename for already existing intermediate files

# deew 3.1.2:

- fix `&` in filename by bpoxy

# deew 3.1.1:

- use custom PyInstaller for less virus flagging

another one