Log Message:
Update to 0.1.0. Changes:

Directory paths containing '..' as a directory name are now sanitized,
to prevent malicious archives being able to overwrite arbitrary files on
the filesystem.

Symbolic links are now extracted in a safer way, being created as dummy
files in O_EXCL mode that are overwritten with proper symbolic links at
the end of extraction.

Processing of archives read from IPC pipes (including stdin) has
been fixed.