switch to node-byline module to avoid buffering problem with readline-stream

for lines > 64k the readline-stream module is affected by
https://github.com/jahewson/node-byline/issues/30 which is fixed in
node-byline (readline-stream was an earlier fork of the byline module)

services/track-changes/app/coffee/MongoAWS.coffee

@@ -4,7 +4,7 @@ AWS = require 'aws-sdk'
 S3S = require 's3-streams'
 {db, ObjectId} = require "./mongojs"
 JSONStream = require "JSONStream"
-ReadlineStream = require "readline-stream"
+ReadlineStream = require "byline"
 
 module.exports = MongoAWS =
 

services/track-changes/package.json

@@ -9,6 +9,7 @@
   "dependencies": {
     "async": "~0.2.10",
     "bson": "^0.4.20",
+    "byline": "^4.2.1",
     "cli": "^0.6.6",
     "express": "3.3.5",
     "line-reader": "^0.2.4",
@@ -22,8 +23,7 @@
     "underscore": "~1.7.0",
     "mongo-uri": "^0.1.2",
     "s3-streams": "^0.3.0",
-    "JSONStream": "^1.0.4",
-    "readline-stream": "^1.0.1"
+    "JSONStream": "^1.0.4"
   },
   "devDependencies": {
     "chai": "~1.9.0",