rmw v0.9.0

• When purging, '-ff' is no longer needed to confirm removal of
  non-writable expired directories and files

• replace function used to remove directories with rm from FreeBSD;
  Thanks to @DiegoMagdaleno and @dcantrell
• change message displayed to user when a file being rmw'ed is on a
  filesystem that doesn't haven't a WASTE folder defined

• Ignore requests to ReMove top-level files, add --top-level-bypass option
  to bypass the protection
• Ignore requests to ReMove user's home directory

• bugfix: buffer underflow when calling trim_char() with empty
  string (Thanks to Christopher Wellons)
• replace valgrind test setup with asan (-fsanitize)
• the 'ESC' key can now be used to quit the restore file selection menu

To very signatures, use:

minisign -Vm <file> -P RWQ5AiSjYrIVoMPxKef7QdKLqQmiZvewAezjLCZHNUkE4/U0C48T3q4N