Enable gossip encryption (#14640)

* Enable gossip encryption

* Fix order

* Auto-generate key

* Update gorp fork to include BeginTx

* Add a test for InsertIfExists

And point gorp to a custom branch for now

Co-authored-by: mattermod <mattermod@users.noreply.github.com>

go.mod

@@ -22,14 +22,13 @@ require (
 	github.com/facebookgo/ensure v0.0.0-20200202191622-63f1cf65ac4c // indirect
 	github.com/facebookgo/stack v0.0.0-20160209184415-751773369052 // indirect
 	github.com/facebookgo/subset v0.0.0-20200203212716-c811ad88dec4 // indirect
-	github.com/fatih/color v1.9.0 // indirect
 	github.com/fortytw2/leaktest v1.3.0 // indirect
 	github.com/francoispqt/gojay v1.2.13
 	github.com/fsnotify/fsnotify v1.4.9
 	github.com/getsentry/sentry-go v0.6.0
 	github.com/glycerine/go-unsnap-stream v0.0.0-20190901134440-81cf024a9e0a // indirect
 	github.com/go-asn1-ber/asn1-ber v1.4.1 // indirect
-	github.com/go-gorp/gorp v2.0.0+incompatible // indirect
+	github.com/go-gorp/gorp v2.2.0+incompatible // indirect
 	github.com/go-sql-driver/mysql v1.5.0
 	github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0
 	github.com/golang/protobuf v1.4.2 // indirect
@@ -55,20 +54,20 @@ require (
 	github.com/jaytaylor/html2text v0.0.0-20200412013138-3577fbdbcff7
 	github.com/jmhodges/levigo v1.0.0 // indirect
 	github.com/jmoiron/sqlx v1.2.0
-	github.com/jonboulle/clockwork v0.1.0
+	github.com/jonboulle/clockwork v0.1.0 // indirect
 	github.com/konsorten/go-windows-terminal-sequences v1.0.2 // indirect
 	github.com/lib/pq v1.4.0
 	github.com/magiconair/properties v1.8.1 // indirect
 	github.com/mailru/easyjson v0.7.1 // indirect
 	github.com/mattermost/go-i18n v1.11.0
-	github.com/mattermost/gorp v2.0.1-0.20190301154413-3b31e9a39d05+incompatible
+	github.com/mattermost/gorp v2.0.1-0.20200527092429-d62b7b9cadfc+incompatible
 	github.com/mattermost/gosaml2 v0.3.2
 	github.com/mattermost/ldap v0.0.0-20191128190019-9f62ba4b8d4d
 	github.com/mattermost/rsc v0.0.0-20160330161541-bbaefb05eaa0
 	github.com/mattermost/viper v1.0.4
 	github.com/mattn/go-colorable v0.1.6 // indirect
 	github.com/mattn/go-runewidth v0.0.9 // indirect
-	github.com/mattn/go-sqlite3 v1.11.0
+	github.com/mattn/go-sqlite3 v2.0.3+incompatible
 	github.com/miekg/dns v1.1.29 // indirect
 	github.com/minio/minio-go/v6 v6.0.55
 	github.com/mitchellh/go-testing-interface v1.14.1 // indirect
@@ -78,12 +77,15 @@ require (
 	github.com/oklog/run v1.1.0 // indirect
 	github.com/olekukonko/tablewriter v0.0.4 // indirect
 	github.com/olivere/elastic v6.2.30+incompatible // indirect
+	github.com/onsi/ginkgo v1.12.0 // indirect
+	github.com/onsi/gomega v1.9.0 // indirect
 	github.com/opentracing/opentracing-go v1.1.0
 	github.com/pborman/uuid v1.2.0
 	github.com/pelletier/go-toml v1.7.0 // indirect
 	github.com/pkg/errors v0.9.1
+	github.com/poy/onpar v1.0.0 // indirect
 	github.com/prometheus/client_golang v1.5.1
-	github.com/prometheus/client_model v0.2.0
+	github.com/prometheus/client_model v0.2.0 // indirect
 	github.com/prometheus/procfs v0.0.11 // indirect
 	github.com/remyoudompheng/bigfft v0.0.0-20190728182440-6a916e37a237 // indirect
 	github.com/rs/cors v1.7.0