upgrade deps

package.json

@@ -35,7 +35,7 @@
     "config-master": "^2.0.2",
     "debug": "^2.2.0",
     "http-proxy": "^1.13.2",
-    "kcors": "^1.0.1",
+    "kcors": "^1.1.0",
     "koa": "^2.0.0-alpha.3",
     "koa-bodyparser": "^3.0.0",
     "koa-compress": "^1.0.9",
@@ -46,10 +46,11 @@
     "koa-morgan": "^1.0.1",
     "koa-rewrite": "^2.1.0",
     "koa-route": "^3",
-    "koa-send": "^3.1.0",
+    "koa-send": "^3.1.1",
     "koa-serve-index": "^1.1.1",
     "koa-static": "^2.0.0",
     "path-to-regexp": "^1.2.1",
+    "reduce-flatten": "^1.0.0",
     "stream-log-stats": "^1.1.3",
     "string-tools": "^1.0.0",
     "test-value": "^1.1.0",
@@ -58,6 +59,6 @@
   "devDependencies": {
     "jsdoc-to-markdown": "^1.3.3",
     "req-then": "^0.2.4",
-    "tape": "^4.5.0"
+    "tape": "^4.5.1"
   }
 }