Introduce EXPERIMENTAL_DANE feature

diff --cc doc/doc-txt/ChangeLog
index 2caf9ed52f04a75d2c30a2618079502982cfb8f8,483528b970ad7f9dd94d0b35f1fe0aa0c819d7d0..f3f4324593499eae6e5f1c6741de53b9c69d9717
--- 1/doc/doc-txt/ChangeLog
--- 2/doc/doc-txt/ChangeLog
+++ b/doc/doc-txt/ChangeLog
@@@ -17,14 -17,9 +17,17 @@@ TL/02 The BSD's have an arc4random API
        OpenBSD 5.5. Detect this OpenBSD version and skip calling this
        function when detected.
  
 -JH/01 Add EXPERIMENTAL_DANE, allowing for using the DNS as trust-anchor for
 +JH/01 Expand the EXPERIMENTAL_TPDA feature.  Several different events now
 +      cause callback expansion.
 +
 +TL/03 Bugzilla 1518: Clarify "condition" processing in routers; that
 +      syntax errors in an expansion can be treated as a string instead of
 +      logging or causing an error, due to the internal use of bool_lax
 +      instead of bool when processing it.
 +
++JH/02 Add EXPERIMENTAL_DANE, allowing for using the DNS as trust-anchor for
+       server certificates when making smtp deliveries.
+ 
  
  Exim version 4.84
  -----------------

diff --cc doc/doc-txt/experimental-spec.txt
Simple merge

diff --cc src/src/deliver.c
Simple merge

diff --cc src/src/globals.c
Simple merge

diff --cc src/src/globals.h
Simple merge