Update go.mod and vendoring (#8752)

This primarily ports updates made during the 1.4 release to master.

go.mod

@@ -40,6 +40,7 @@ require (
 	github.com/go-ldap/ldap/v3 v3.1.3
 	github.com/go-ole/go-ole v1.2.1 // indirect
 	github.com/go-sql-driver/mysql v1.4.1
+	github.com/go-stack/stack v1.8.0 // indirect
 	github.com/go-test/deep v1.0.2
 	github.com/gocql/gocql v0.0.0-20190402132108-0e1d5de854df
 	github.com/gogo/protobuf v1.2.1
@@ -67,27 +68,27 @@ require (
 	github.com/hashicorp/nomad/api v0.0.0-20191220223628-edc62acd919d
 	github.com/hashicorp/raft v1.1.2-0.20191002163536-9c6bd3e3eb17
 	github.com/hashicorp/raft-snapshot v1.0.2-0.20190827162939-8117efcc5aab
-	github.com/hashicorp/vault-plugin-auth-alicloud v0.5.4-beta1
-	github.com/hashicorp/vault-plugin-auth-azure v0.5.4-beta1
-	github.com/hashicorp/vault-plugin-auth-centrify v0.5.4-beta1
-	github.com/hashicorp/vault-plugin-auth-cf v0.5.3-beta1
-	github.com/hashicorp/vault-plugin-auth-gcp v0.6.0-beta1
-	github.com/hashicorp/vault-plugin-auth-jwt v0.6.0-beta1
-	github.com/hashicorp/vault-plugin-auth-kerberos v0.1.4-beta1
-	github.com/hashicorp/vault-plugin-auth-kubernetes v0.6.0-beta1
-	github.com/hashicorp/vault-plugin-auth-oci v0.5.3-beta1
-	github.com/hashicorp/vault-plugin-database-elasticsearch v0.5.3-beta1
-	github.com/hashicorp/vault-plugin-database-mongodbatlas v0.1.0-beta1
-	github.com/hashicorp/vault-plugin-secrets-ad v0.6.4-beta1
-	github.com/hashicorp/vault-plugin-secrets-alicloud v0.5.4-beta1
-	github.com/hashicorp/vault-plugin-secrets-azure v0.5.5-beta1
-	github.com/hashicorp/vault-plugin-secrets-gcp v0.6.0-beta1
-	github.com/hashicorp/vault-plugin-secrets-gcpkms v0.5.4-beta1
-	github.com/hashicorp/vault-plugin-secrets-kv v0.5.4-beta1
+	github.com/hashicorp/vault-plugin-auth-alicloud v0.5.4
+	github.com/hashicorp/vault-plugin-auth-azure v0.5.4
+	github.com/hashicorp/vault-plugin-auth-centrify v0.5.4
+	github.com/hashicorp/vault-plugin-auth-cf v0.5.3
+	github.com/hashicorp/vault-plugin-auth-gcp v0.6.0
+	github.com/hashicorp/vault-plugin-auth-jwt v0.6.1
+	github.com/hashicorp/vault-plugin-auth-kerberos v0.1.4
+	github.com/hashicorp/vault-plugin-auth-kubernetes v0.6.0
+	github.com/hashicorp/vault-plugin-auth-oci v0.5.3
+	github.com/hashicorp/vault-plugin-database-elasticsearch v0.5.3
+	github.com/hashicorp/vault-plugin-database-mongodbatlas v0.1.0
+	github.com/hashicorp/vault-plugin-secrets-ad v0.6.4
+	github.com/hashicorp/vault-plugin-secrets-alicloud v0.5.4
+	github.com/hashicorp/vault-plugin-secrets-azure v0.5.5
+	github.com/hashicorp/vault-plugin-secrets-gcp v0.6.0
+	github.com/hashicorp/vault-plugin-secrets-gcpkms v0.5.4
+	github.com/hashicorp/vault-plugin-secrets-kv v0.5.4
 	github.com/hashicorp/vault-plugin-secrets-mongodbatlas v0.1.1
-	github.com/hashicorp/vault-plugin-secrets-openldap v0.1.0-beta1.0.20200306174116-e7553b03b931
-	github.com/hashicorp/vault/api v1.0.5-0.20200215224050-f6547fa8e820
-	github.com/hashicorp/vault/sdk v0.1.14-0.20200305172021-03a3749f220d
+	github.com/hashicorp/vault-plugin-secrets-openldap v0.1.1
+	github.com/hashicorp/vault/api v1.0.5-0.20200317185738-82f498082f02
+	github.com/hashicorp/vault/sdk v0.1.14-0.20200317185738-82f498082f02
 	github.com/influxdata/influxdb v0.0.0-20190411212539-d24b7ba8c4c4
 	github.com/jcmturner/gokrb5/v8 v8.0.0
 	github.com/jefferai/isbadcipher v0.0.0-20190226160619-51d2077c035f