Fix CRLF&LF mixed in one file.  And cleanup trailing-whitespaces.

  Fix CRLF&LF mixed file.
  Delete trailing whitespaces.
  Use utf-8 instead of UTF-8 for coding magic comment in Archive.py.
Merge pull request #5 from kaoru6/fix-crlf-lf-mixed-file

CRLF&LF mixed in some files. Cleanup.