Log Message:
- Updated to 1.30

ChangeLog:
1.30   2012-11-19

- There was an eval which did not first localize $@ and $SIG{__DIE__}. This
  broke Plack::Middleware::StackTrace (and possibly other tihngs).

1.29   2012-11-16

- The Devel::StackTrace->frames() method is now read-write. This allows you to
  do more complex filtering of frames than is easily possible with the
  frame_filter argument to the constructor. Patch by David Cantrell.

1.28   2012-11-16

- Allow arguments to a trace's as_string method, specifically max_arg_length
  Patch by Ricardo Signes.

- Added a no_args option to the constructor in 1.26 but forgot to mention it
  in Changes. Requested by Scott J. Miller. RT #71482.