Changes between 0.9.6 and 0.9.7 [xx XXX 2000]
+ *) New function BN_mod_sqrt for computing square roots modulo a prime
+ (Tonelli-Shanks algorithm).
+ [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
+
*) Store verify_result within SSL_SESSION also for client side to
avoid potential security hole. (Re-used sessions on the client side
always resulted in verify_result==X509_V_OK, not using the original