Moving from govendor to dep, updated dependencies (#48)

* Moving from govendor to dep.

* Making the pull request template more friendly.

* Fixing akward space in PR template.

* goimports run on whole project using ` goimports -w $(find . -type f -name '*.go' -not -path "./vendor/*" -not -path "./gen-go/*")`

source of command: https://gist.github.com/bgentry/fd1ffef7dbde01857f66

clusters.go

@@ -16,8 +16,9 @@ package realis
 
 import (
 	"encoding/json"
-	"github.com/pkg/errors"
 	"os"
+
+	"github.com/pkg/errors"
 )
 
 type Cluster struct {