fix: move 'pull-stream' from devDependencies to dependencies (#220)

'pull-stream' package is needed in dependencies because it is used in './src/limit-dialer/queue.js'.

package.json

@@ -54,7 +54,6 @@
  "pre-commit": "^1.2.2",
  "pull-goodbye": "0.0.1",
  "peer-book": "~0.4.0",
- "pull-stream": "^3.5.0",
  "webrtcsupport": "^2.2.0"
  },
  "dependencies": {
@@ -70,7 +69,8 @@
  "once": "^1.4.0",
  "peer-id": "~0.8.7",
  "peer-info": "~0.9.2",
- "protocol-buffers": "^3.2.1"
+ "protocol-buffers": "^3.2.1",
+ "pull-stream": "^3.5.0"
  },
  "contributors": [
  "David Dias <[email protected]>",
@@ -87,4 +87,4 @@
  "greenkeeper[bot] <greenkeeper[bot]@users.noreply.github.com>",
  "ᴠɪᴄᴛᴏʀ ʙᴊᴇʟᴋʜᴏʟᴍ <[email protected]>"
  ]
-}
+}