Updated to 1.21

Changes:

2011-10-15  Gisle Aas <gisle@ActiveState.com>

  Release 1.21

  Make dump($1) work when $1 was integer [RT#63883]

  Dump floats without quoting

2011-10-02  Gisle Aas <gisle@ActiveState.com>

  Release 1.20

  Add depth() method to FilterContext

  Make dump($1) work [RT#63883]

  Limit our temp listen socket to localhost [RT#63534]

(rhaen)