Update ChangeLog.

ChangeLog

@@ -1,17 +1,27 @@
-Changes between 1.6.7 and the master branch
+Changes between 1.6.8 and the master branch
 
 	License and copyright changes:
 	- Copyright UNINETT AS and NORDUnet A/S.
 	- 3-clause BSD license only, no GPL.
 
+	Enhancements:
+	- Support the use of OpenSSL version 1.1 series (RADSECPROXY-66).
+
+	Misc:
+	- libnettle is now an unconditional dependency.
+	- FTicks support is now on by default and not optional.
+
 	Bug fixes:
 	- Detect the presence of docbook2x-man correctly.
+	- Make clang less unhappy.
+	- Don't use a smaller pthread stack size than what's allowed.
+	- Don't follow NULL the pointer at debug level 5 (RADSECPROXY-68).
+
+2016-09-21 1.6.8
+	Bug fixes:
 	- Stop waiting on writable when reading a TCP socket.
 	- Stomp less on the memory of other threads (RADSECPROXY-64).
 
-	Enhancements:
-	- Support the use of OpenSSL version 1.1 series (RADSECPROXY-66).
-
 2016-03-14 1.6.7
 	Enhancements (security):
 	- Negotiate TLS1.1, TLS1.2 and DTLS1.2 when possible, client and