Added missing x509write_crt_set_version()

ChangeLog

diff --git a/ChangeLog b/ChangeLog
index 7becbcd..f6def8c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -16,6 +16,7 @@
    * Possible naming collision in dhm_context
    * Better support for MSVC
    * threading_set_alt() name
+   * Added missing x509write_crt_set_version()
 
 = PolarSSL-1.3.0 released on 2013-10-01
 Features