Merge branch 'master' into next

.gitignore

@@ -0,0 +1 @@
+steem-block-db

.gitlab-ci.yml

@@ -0,0 +1,30 @@
+image: golang:1.11
+
+cache:
+  paths:
+    - /apt-cache
+    - /go/src/github.com
+    - /go/src/golang.org
+    - /go/src/google.golang.org
+    - /go/src/gopkg.in
+
+stages:
+  - test
+  - build
+
+before_script:
+  - mkdir /go/src/steem-block-db
+  - cp $CI_PROJECT_DIR/*.go /go/src/steem-block-db
+  - cd /go/src/steem-block-db
+  - GOPATH=/go go get
+
+#unit_tests:
+#  stage: test
+#  script:
+#    - make test
+
+build:
+  stage: build
+  script:
+    - cd /go/src/steem-block-db
+    - GOPATH=/go go build

kvstore.go

@@ -115,7 +115,7 @@ func (kv *BadgerKVStore) Put(key *string, value *string) error {
 	if err != nil {
 		log.Fatal(err)
 	}
-	err = txn.Commit(nil)
+	err = txn.Commit()
 	if err != nil {
 		log.Fatal(err)
 	}