Re-add CVE identifiers to ChangeLog.

I'm lame. My last commit removed all the CVE numbers recently added in
commit 598df0758 to the ChangeLog ... shame on me!

See all the CVE entries of ngIRCd at:
<http://cve.mitre.org/cgi-bin/cvekey.cgi?keyword=ngircd>

ChangeLog

@@ -69,7 +69,7 @@ ngIRCd 0.11.0 (2008-01-15)
 
   ngIRCd 0.11.0-pre2 (2008-01-07)
   - SECURITY: IRC_PART could reference invalid memory, causing
-    ngircd to crash [from HEAD].
+    ngircd to crash [from HEAD]. (CVE-2008-0285)
   
   ngIRCd 0.11.0-pre1 (2008-01-02)
   - Use dotted-decimal IP address if hostname is >= 64.
@@ -103,12 +103,13 @@ ngIRCd 0.11.0 (2008-01-15)
 ngIRCd 0.10.4 (2008-01-07)
 
   - SECURITY: IRC_PART could reference invalid memory, causing
-    ngircd to crash [from HEAD].
+    ngircd to crash [from HEAD]. (CVE-2008-0285)
   
 ngIRCd 0.10.3 (2007-08-01)
 
   - SECURITY: Fixed a severe bug in handling JOIN commands, which could
     cause the server to crash. Thanks to Sebastian Vesper, <net@veoson.net>.
+    (CVE-2007-6062)
 
 ngIRCd 0.10.2 (2007-06-08)
 
@@ -243,13 +244,13 @@ ngIRCd 0.8.3 (2005-02-03)
   - Fixed a bug that could case a root exploit when the daemon is compiled
     to do IDENT lookups and is logging to syslog. Bug discovered by CoKi,
     <coki@nosystem.com.ar>, thanks a lot!
-    (http://www.nosystem.com.ar/advisories/advisory-11.txt)
+    (CVE-2005-0226; http://www.nosystem.com.ar/advisories/advisory-11.txt)
 
 ngIRCd 0.8.2 (2005-01-26)
 
   - Added doc/SSL.txt to distribution.
   - Fixed a buffer overflow that could cause the daemon to crash. Bug found
-    by Florian Westphal, <westphal@foo.fh-furtwangen.de>.
+    by Florian Westphal, <westphal@foo.fh-furtwangen.de>. (CVE-2005-0199)
   - Fixed a possible buffer underrun when reading the MOTD file. Thanks
     to Florian Westphal, <westphal@foo.fh-furtwangen.de>.
   - Fixed detection of IRC lines which are too long to send. Detected by