Split mimedecode.py into a library and a small script.
Move formatparam_27.py and mimedecode_version.py to the library.
Rename mimedecode_version.py to __version__.py.
Split mimedecode.py into a library and a small script.
Move formatparam_27.py and mimedecode_version.py to the library.
Rename mimedecode_version.py to __version__.py.