OS -> ENT Merge (#757)

* Better cert path validation exception message for PartyAndCertificate.verify (#2976)

* Corda Behave extensions for CTS (#2968)

* Updated to Corda 3.0, added support for PostgreSQL, added STAGING_ROOT environment variable, incorporating Watch improvements (Maks), Steps Provider interface for auto-scanning of 3rd party steps providers, re-implemented StepBlocks, new ScenarioRunner executable tool, additional Steps definitions (Vault, issue/transfer cash, cordapps), other minor bug fixes and logging improvements.

* Updates incorporating PR review feedback.

* Reverted back to original - will re-test in ENT.

* Removed all SQL Server code (to be included in ENT only)

* Minor updates following second PR review.

* Fixed broken scenario tests.

* Final fix for PostgreSQL scenario test.

node-api/src/main/kotlin/net/corda/nodeapi/internal/crypto/X509Utilities.kt

@@ -114,20 +114,7 @@ object X509Utilities {
     }
 
     fun validateCertPath(trustedRoot: X509Certificate, certPath: CertPath) {
-        val params = PKIXParameters(setOf(TrustAnchor(trustedRoot, null)))
-        params.isRevocationEnabled = false
-        try {
-            CertPathValidator.getInstance("PKIX").validate(certPath, params)
-        } catch (e: CertPathValidatorException) {
-            throw CertPathValidatorException(
-                    """Cert path failed to validate against root certificate.
-Reason: ${e.reason}
-Offending cert index: ${e.index}
-Cert path: $certPath
-
-Root certificate:
-$trustedRoot""", e, certPath, e.index)
-        }
+        certPath.validate(TrustAnchor(trustedRoot, null))
     }
 
     /**