version_check_feature() added to check for compile-time options at run-time

ChangeLog

diff --git a/ChangeLog b/ChangeLog
index f3b9de1..8047407 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -4,6 +4,8 @@
 Features
    * debug_set_log_mode() added to determine raw or full logging
    * debug_set_threshold() added to ignore messages over threshold level
+   * version_check_feature() added to check for compile-time options at
+     run-time
 
 Changes
    * POLARSSL_CONFIG_OPTIONS has been removed. All values are individually