Bump Terraform SDK to RC1 (#440)

* Bump Terraform SDK to RC1

* Re-vendor after SDK bump

* Bump vendored AWS provider to v2.10.0

* Revendor after AWS provider bump

go.mod

@@ -3,34 +3,28 @@ module github.com/terraform-providers/terraform-provider-kubernetes
 require (
 	contrib.go.opencensus.io/exporter/ocagent v0.4.1 // indirect
 	github.com/Azure/go-autorest v11.5.0+incompatible // indirect
-	github.com/aws/aws-sdk-go v1.17.3 // indirect
-	github.com/beevik/etree v1.1.0 // indirect
-	github.com/boombuler/barcode v1.0.0 // indirect
 	github.com/dustinkirkland/golang-petname v0.0.0-20170921220637-d3c2ba80e75e // indirect
 	github.com/gogo/protobuf v1.2.1 // indirect
 	github.com/golang/snappy v0.0.1 // indirect
 	github.com/googleapis/gnostic v0.2.0 // indirect
 	github.com/gophercloud/gophercloud v0.0.0-20190221164956-3f3cc5a566b2 // indirect
 	github.com/gregjones/httpcache v0.0.0-20190212212710-3befbb6ad0cc // indirect
 	github.com/hashicorp/go-hclog v0.7.0 // indirect
-	github.com/hashicorp/go-version v1.1.0
+	github.com/hashicorp/go-version v1.2.0
 	github.com/hashicorp/hcl v1.0.0 // indirect
 	github.com/hashicorp/hil v0.0.0-20190212132231-97b3a9cdfa93 // indirect
-	github.com/hashicorp/terraform v0.12.0-alpha4.0.20190424121927-9327eedb0417
+	github.com/hashicorp/terraform v0.12.0-rc1
 	github.com/hashicorp/vault v1.0.3 // indirect
 	github.com/hashicorp/yamux v0.0.0-20181012175058-2f1d1f20f75d // indirect
 	github.com/imdario/mergo v0.3.6 // indirect
 	github.com/keybase/go-crypto v0.0.0-20181127160227-255a5089e85a // indirect
 	github.com/mitchellh/go-homedir v1.1.0
 	github.com/peterbourgon/diskv v2.0.1+incompatible // indirect
 	github.com/pierrec/lz4 v2.0.5+incompatible // indirect
-	github.com/pquerna/otp v1.1.0 // indirect
 	github.com/stoewer/go-strcase v1.0.2 // indirect
-	github.com/terraform-providers/terraform-provider-aws v1.58.0
+	github.com/terraform-providers/terraform-provider-aws v0.0.0-20190510001811-4b894dbf13f6
 	github.com/terraform-providers/terraform-provider-google v1.20.0
 	github.com/terraform-providers/terraform-provider-random v2.0.0+incompatible // indirect
-	github.com/terraform-providers/terraform-provider-template v1.0.0 // indirect
-	github.com/terraform-providers/terraform-provider-tls v1.2.0 // indirect
 	github.com/ulikunitz/xz v0.5.6 // indirect
 	github.com/vmihailenco/msgpack v4.0.2+incompatible // indirect
 	go.opencensus.io v0.19.0 // indirect