source.drafts forces releases to be drafts

this makes all versions emitted and detected by the resource be
consistently drafts. a separate non-draft resource should be used for
publishing non-draft releases.

out_command.go

@@ -52,7 +52,7 @@ func (c *OutCommand) Run(sourceDir string, request OutRequest) (OutResponse, err
 		}
 	}
 
-	draft := request.Params.Draft
+	draft := request.Source.Drafts
 
 	release := &github.RepositoryRelease{
 		Name:            github.String(name),

out_command_test.go

@@ -221,7 +221,7 @@ var _ = Describe("Out Command", func() {
 			BeforeEach(func() {
 				bodyPath := filepath.Join(sourcesDir, "body")
 				file(bodyPath, "this is a great release")
-				request.Params.Draft = true
+				request.Source.Drafts = true
 			})
 
 			It("creates a release on GitHub in draft mode", func() {

resources.go

@@ -41,7 +41,6 @@ type OutParams struct {
 	BodyPath      string `json:"body"`
 	TagPath       string `json:"tag"`
 	CommitishPath string `json:"commitish"`
-	Draft         bool   `json:"draft"`
 
 	Globs []string `json:"globs"`
 }