Changes between 0.9.7c and 0.9.8 [xx XXX xxxx]
+ *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
+ that can only be obtained through BN_CTX_new() (which implicitly
+ initialises it). The presence of this function only made it possible
+ to overwrite an existing structure (and cause memory leaks).
+ [Geoff Thorpe]
+
*) Because of the callback-based approach for implementing LHASH as a
template type, lh_insert() adds opaque objects to hash-tables and
lh_doall() or lh_doall_arg() are typically used with a destructor callback