Bug#34236: Various possibly related SSL crashes

The problem was that the bundled yaSSL library was being built
without thread safety support regardless of the thread safeness
of the compoments linked with it.

The solution is to enable yaSSL thread safety support if any
component (server or client) is to be built with thread support.

Also, generate new certificates for yaSSL's test suite.

extra/yassl/certs/client-cert.pem

@@ -5,8 +5,8 @@ Certificate:
         Signature Algorithm: md5WithRSAEncryption
         Issuer: C=US, ST=Oregon, L=Portland, O=yaSSL, CN=www.yassl.com/emailAddress=info@yassl.com
         Validity
-            Not Before: Jan 18 19:33:15 2005 GMT
-            Not After : Oct 15 19:33:15 2007 GMT
+            Not Before: Mar  7 03:00:31 2005 GMT
+            Not After : Apr  1 03:00:31 2046 GMT
         Subject: C=US, ST=Oregon, L=Portland, O=yaSSL, CN=www.yassl.com/emailAddress=info@yassl.com
         Subject Public Key Info:
             Public Key Algorithm: rsaEncryption
@@ -29,15 +29,15 @@ Certificate:
             X509v3 Basic Constraints: 
                 CA:TRUE
     Signature Algorithm: md5WithRSAEncryption
-        c5:82:26:0c:1f:61:01:14:b0:ce:18:99:64:91:0e:f1:f8:90:
-        3e:a3:0e:be:38:7c:97:ba:05:c9:2a:dc:dd:62:2d:12:61:79:
-        7a:86:b1:97:5d:1e:e8:f7:e8:32:34:f7:8f:b1:08:3d:13:71:
-        a6:3c:15:91:85:12:35:6e:78:87
+        59:19:ae:1b:4e:65:9e:ca:f1:b8:3d:ff:c7:5e:15:86:10:97:
+        8c:3e:22:32:ab:4e:75:a7:70:83:f2:fb:2f:af:fe:26:28:e9:
+        4f:d4:c9:49:7c:6f:51:7e:2a:ff:a0:5b:25:45:2e:66:d9:0d:
+        92:94:e5:b8:60:c6:67:1a:f3:03
 -----BEGIN CERTIFICATE-----
 MIICtzCCAmGgAwIBAgIBADANBgkqhkiG9w0BAQQFADB4MQswCQYDVQQGEwJVUzEP
 MA0GA1UECBMGT3JlZ29uMREwDwYDVQQHEwhQb3J0bGFuZDEOMAwGA1UEChMFeWFT
 U0wxFjAUBgNVBAMTDXd3dy55YXNzbC5jb20xHTAbBgkqhkiG9w0BCQEWDmluZm9A
-eWFzc2wuY29tMB4XDTA1MDExODE5MzMxNVoXDTA3MTAxNTE5MzMxNVoweDELMAkG
+eWFzc2wuY29tMB4XDTA1MDMwNzAzMDAzMVoXDTQ2MDQwMTAzMDAzMVoweDELMAkG
 A1UEBhMCVVMxDzANBgNVBAgTBk9yZWdvbjERMA8GA1UEBxMIUG9ydGxhbmQxDjAM
 BgNVBAoTBXlhU1NMMRYwFAYDVQQDEw13d3cueWFzc2wuY29tMR0wGwYJKoZIhvcN
 AQkBFg5pbmZvQHlhc3NsLmNvbTBcMA0GCSqGSIb3DQEBAQUAA0sAMEgCQQDNH3hH
@@ -47,6 +47,6 @@ wP/OtbStMIGiBgNVHSMEgZowgZeAFK4lXvpNo1srh97xKvVCwP/OtbStoXykejB4
 MQswCQYDVQQGEwJVUzEPMA0GA1UECBMGT3JlZ29uMREwDwYDVQQHEwhQb3J0bGFu
 ZDEOMAwGA1UEChMFeWFTU0wxFjAUBgNVBAMTDXd3dy55YXNzbC5jb20xHTAbBgkq
 hkiG9w0BCQEWDmluZm9AeWFzc2wuY29tggEAMAwGA1UdEwQFMAMBAf8wDQYJKoZI
-hvcNAQEEBQADQQDFgiYMH2EBFLDOGJlkkQ7x+JA+ow6+OHyXugXJKtzdYi0SYXl6
-hrGXXR7o9+gyNPePsQg9E3GmPBWRhRI1bniH
+hvcNAQEEBQADQQBZGa4bTmWeyvG4Pf/HXhWGEJeMPiIyq051p3CD8vsvr/4mKOlP
+1MlJfG9Rfir/oFslRS5m2Q2SlOW4YMZnGvMD
 -----END CERTIFICATE-----