Update default configuration

Change the default settings for SSL and modify the tests accordingly.
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 094d906..ffaf677 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -100,7 +100,7 @@
         ADD_CUSTOM_TARGET(covtest
             COMMAND make test
             COMMAND programs/test/selftest
-            COMMAND tests/compat.sh
+            COMMAND tests/compat.sh -m 'tls1 tls1_1 tls1_2 dtls1 dtls1_2'
             COMMAND tests/ssl-opt.sh
         )
 
diff --git a/include/mbedtls/config.h b/include/mbedtls/config.h
index 987d59d..81daaee 100644
--- a/include/mbedtls/config.h
+++ b/include/mbedtls/config.h
@@ -1058,7 +1058,7 @@
  *
  * Comment this macro to disable support for SSL 3.0
  */
-#define MBEDTLS_SSL_PROTO_SSL3
+//#define MBEDTLS_SSL_PROTO_SSL3
 
 /**
  * \def MBEDTLS_SSL_PROTO_TLS1
diff --git a/tests/ssl-opt.sh b/tests/ssl-opt.sh
index c0b6f94..8792b21 100755
--- a/tests/ssl-opt.sh
+++ b/tests/ssl-opt.sh
@@ -695,6 +695,7 @@
             -C "using encrypt then mac" \
             -S "using encrypt then mac"
 
+requires_config_enabled MBEDTLS_SSL_PROTO_SSL3
 run_test    "Encrypt then MAC: client SSLv3, server enabled" \
             "$P_SRV debug_level=3 min_version=ssl3 \
              force_ciphersuite=TLS-RSA-WITH-AES-128-CBC-SHA" \
@@ -707,6 +708,7 @@
             -C "using encrypt then mac" \
             -S "using encrypt then mac"
 
+requires_config_enabled MBEDTLS_SSL_PROTO_SSL3
 run_test    "Encrypt then MAC: client enabled, server SSLv3" \
             "$P_SRV debug_level=3 force_version=ssl3 \
              force_ciphersuite=TLS-RSA-WITH-AES-128-CBC-SHA" \
@@ -754,6 +756,7 @@
             -C "using extended master secret" \
             -S "using extended master secret"
 
+requires_config_enabled MBEDTLS_SSL_PROTO_SSL3
 run_test    "Extended Master Secret: client SSLv3, server enabled" \
             "$P_SRV debug_level=3 min_version=ssl3" \
             "$P_CLI debug_level=3 force_version=ssl3" \
@@ -765,6 +768,7 @@
             -C "using extended master secret" \
             -S "using extended master secret"
 
+requires_config_enabled MBEDTLS_SSL_PROTO_SSL3
 run_test    "Extended Master Secret: client enabled, server SSLv3" \
             "$P_SRV debug_level=3 force_version=ssl3" \
             "$P_CLI debug_level=3 min_version=ssl3" \
@@ -883,6 +887,7 @@
             -s "Read from client: 1 bytes read" \
             -s "122 bytes read"
 
+requires_config_enabled MBEDTLS_SSL_PROTO_SSL3
 run_test    "CBC Record splitting: SSLv3, splitting" \
             "$P_SRV min_version=ssl3" \
             "$P_CLI force_ciphersuite=TLS-RSA-WITH-AES-128-CBC-SHA \
@@ -1674,6 +1679,7 @@
             -c "skip write certificate verify" \
             -C "! mbedtls_ssl_handshake returned"
 
+requires_config_enabled MBEDTLS_SSL_PROTO_SSL3
 run_test    "Authentication: client no cert, ssl3" \
             "$P_SRV debug_level=3 auth_mode=optional force_version=ssl3" \
             "$P_CLI debug_level=3 crt_file=none key_file=none min_version=ssl3" \
@@ -2593,6 +2599,7 @@
 
 # Tests for ciphersuites per version
 
+requires_config_enabled MBEDTLS_SSL_PROTO_SSL3
 run_test    "Per-version suites: SSL3" \
             "$P_SRV min_version=ssl3 version_suites=TLS-RSA-WITH-3DES-EDE-CBC-SHA,TLS-RSA-WITH-AES-256-CBC-SHA,TLS-RSA-WITH-AES-128-CBC-SHA,TLS-RSA-WITH-AES-128-GCM-SHA256" \
             "$P_CLI force_version=ssl3" \
@@ -2642,6 +2649,7 @@
 
 # Tests for small packets
 
+requires_config_enabled MBEDTLS_SSL_PROTO_SSL3
 run_test    "Small packet SSLv3 BlockCipher" \
             "$P_SRV min_version=ssl3" \
             "$P_CLI request_size=1 force_version=ssl3 \
@@ -2649,6 +2657,7 @@
             0 \
             -s "Read from client: 1 bytes read"
 
+requires_config_enabled MBEDTLS_SSL_PROTO_SSL3
 run_test    "Small packet SSLv3 StreamCipher" \
             "$P_SRV min_version=ssl3 arc4=1 force_ciphersuite=TLS-RSA-WITH-RC4-128-SHA" \
             "$P_CLI request_size=1 force_version=ssl3 \
@@ -2783,6 +2792,7 @@
 
 # Test for large packets
 
+requires_config_enabled MBEDTLS_SSL_PROTO_SSL3
 run_test    "Large packet SSLv3 BlockCipher" \
             "$P_SRV min_version=ssl3" \
             "$P_CLI request_size=16384 force_version=ssl3 recsplit=0 \
@@ -2790,6 +2800,7 @@
             0 \
             -s "Read from client: 16384 bytes read"
 
+requires_config_enabled MBEDTLS_SSL_PROTO_SSL3
 run_test    "Large packet SSLv3 StreamCipher" \
             "$P_SRV min_version=ssl3 arc4=1 force_ciphersuite=TLS-RSA-WITH-RC4-128-SHA" \
             "$P_CLI request_size=16384 force_version=ssl3 \