changed openssl to import CRYPTO_mem_set_functions from libcrypto and made sockets.nim exclude the sslv2 code on BSD

lib/pure/sockets.nim

@@ -295,7 +295,7 @@ when defined(ssl):
     of protSSLv23:
       newCTX = SSL_CTX_new(SSLv23_method()) # SSlv2,3 and TLS1 support.
     of protSSLv2:
-      when not defined(linux):
+      when not defined(linux) and not defined(OpenBSD):
         newCTX = SSL_CTX_new(SSLv2_method())
       else:
         SSLError()

lib/wrappers/openssl.nim

@@ -270,7 +270,7 @@ proc OPENSSL_config*(configName: cstring){.cdecl, dynlib: DLLSSLName, importc.}
 
 when not defined(windows):
   proc CRYPTO_set_mem_functions(a,b,c: pointer){.cdecl, 
-    dynlib: DLLSSLName, importc.}
+    dynlib: DLLUtilName, importc.}
 
 proc CRYPTO_malloc_init*() =
   when not defined(windows):