Append GIN suffix to version string

Helps us keep track of the version of our modifications and useful for
fetching new versions of js code, which relies on version strings.

gogs.go

@@ -16,7 +16,7 @@ import (
 	"github.com/G-Node/gogs/pkg/setting"
 )
 
-const APP_VER = "0.11.87.0206"
+const APP_VER = "0.11.87.0206.gin0001"
 
 func init() {
 	setting.AppVer = APP_VER

templates/.VERSION

@@ -1 +1 @@
-0.11.87.0206
+0.11.87.0206.gin0001