update dependencies

package.json

@@ -30,13 +30,13 @@
     "carrier": "~0.1.8",
     "commander": "~1.1.1",
     "readable-stream": "~1.0.0",
-    "xtend": "~2.0.3",
+    "xtend": "^2.0.3",
     "deep-equal": "0.0.0",
     "measured": "~0.1.3",
     "streamprocess": "0.0.1",
     "oncemore": "~0.1.0",
     "m3u8parse": "~0.1.5",
-    "mime": "~1.2.11",
+    "mime": "^1.2.11",
     "uristream": "~0.1.0"
   },
   "devDependencies": {