Add ENABLE_PPROF to app.ini and start pprof if true on localhost:6060 (#801)

* Add ENABLE_PPROF to app.ini and start pprof if true on localhost:6060

* Add comment for golint to blank pprof import

cmd/web.go

@@ -9,6 +9,7 @@ import (
 	"net"
 	"net/http"
 	"net/http/fcgi"
+	_ "net/http/pprof" // Used for debugging if enabled and a web server is running
 	"os"
 	"path"
 	"strings"
@@ -645,6 +646,12 @@ func runWeb(ctx *cli.Context) error {
 		log.Info("LFS server enabled")
 	}
 
+	if setting.EnablePprof {
+		go func() {
+			log.Info("%v", http.ListenAndServe("localhost:6060", nil))
+		}()
+	}
+
 	var err error
 	switch setting.Protocol {
 	case setting.HTTP: