Print all registered package versions

@@ -32,6 +32,7 @@ import (
 	"strings"
 
 	"gitlab.weird-web-workers.org/golang/logger"
+	"gitlab.weird-web-workers.org/golang/version"
 )
 
 type ApiHandler struct {
@@ -58,13 +59,7 @@ func (handler *ApiHandler) ServeHTTP(
 	dirs := strings.Split(request.URL.Path, "/")
 	switch dirs[0] {
 	case "version":
-		v, err := json.Marshal(
-			version{
-				VERSION,
-				REVISION,
-				BUILD_TIME,
-			},
-		)
+		v, err := version.Versions.Json()
 		if err != nil {
 			http.Error(response, "Unable to encode version information", 500)
 			return