Log Message:
Changes 2.1.6:
* radclient exits with 0 on successful (accept / ack), and 1 otherwise
  (no response / reject)
* Added support for %{sql:UPDATE ..}, and insert/delete
* Added sample "do not respond" policy
* New VSAs for Juniper from Bjorn Mork
* Include more RFC dictionaries in the default install
* More documentation for the WiMAX module
* Added "chase_referrals" and "rebind" configuration to rlm_ldap
* Don't load pre/post-proxy if proxying is disabled
* Added %{md5:...}, which returns MD5 hash in hex
* Added configurable "retry_interval" and "poll_interval" \ 
for "detail"
  listeners.
* Added "delete_mppe_keys" configuration option to rlm_wimax.
  Apparently some WiMAX clients misbehave when they see those keys.
* Added experimental rlm_ruby
* Add Tunnel attributes to ldap.attrmap
* Enable virtual servers to be reloaded on HUP
* Updated "radwatch" script to be more robust
* Added certificate compatibility notes in raddb/certs/README, for
  compatibility with different operating systems. (i.e. Windows)
* Bug Fixes