Add branch overiew page (#2108)

* Add branch overiew page

* fix changed method name on sub menu

* remove unused code

routers/repo/commit.go

@@ -53,6 +53,7 @@ func Commits(ctx *context.Context) {
 		ctx.Handle(404, "Commit not found", nil)
 		return
 	}
+	ctx.Data["PageIsViewCode"] = true
 
 	commitsCount, err := ctx.Repo.Commit.CommitsCount()
 	if err != nil {
@@ -88,6 +89,7 @@ func Commits(ctx *context.Context) {
 // Graph render commit graph - show commits from all branches.
 func Graph(ctx *context.Context) {
 	ctx.Data["PageIsCommits"] = true
+	ctx.Data["PageIsViewCode"] = true
 
 	commitsCount, err := ctx.Repo.Commit.CommitsCount()
 	if err != nil {
@@ -114,6 +116,7 @@ func Graph(ctx *context.Context) {
 // SearchCommits render commits filtered by keyword
 func SearchCommits(ctx *context.Context) {
 	ctx.Data["PageIsCommits"] = true
+	ctx.Data["PageIsViewCode"] = true
 
 	keyword := strings.Trim(ctx.Query("q"), " ")
 	if len(keyword) == 0 {