Added --enable-auto-block-tests for testing the auto-blocking functionality in psad
added --analysis-auto-block mode to allow auto-responses to be testing in -A mode
Configurable auto-blocking timeout values.

Oscar Marley suggested configurable auto-blocking timeout values depending on
the danger level that a scan or attack achieves.  This resulted in the
implementation of the AUTO_BLOCK_DL*_TIMEOUT variables.
Added EMAIL_THROTTLE for email throttling

Added the ability to throttle emails generated by psad via a new
EMAIL_THROTTLE variable which is implemented as a per-IP threshold.  That
is, if EMAIL_THROTTLE is set to "10", then psad will only send 1/10th as
many emails for each scanning IP as it would have normally.  This feature
was suggested by Naji Mouawad.
bumped version to 2.2.1
minor date update for psad-2.2.1 release
changes since psad-2.2
added auto_min_dl5_blocking.conf file
changes since psad-2.2