deps bump + remove unused vars

.travis.yml

@@ -1,6 +1,6 @@
 language: node_js
 node_js:
-  - "0.10"
+  - "6"
 script: make $COMMAND
 env:
   matrix:

lib/zlib/inftrees.js

@@ -227,10 +227,8 @@ module.exports = function inflate_table(type, lens, lens_index, codes, table, ta
     return 1;
   }
 
-  var i = 0;
   /* process all codes and make table entries */
   for (;;) {
-    i++;
     /* create table entry */
     here_bits = len - drop;
     if (work[sym] < end) {

package.json

@@ -21,20 +21,20 @@
   "license": "MIT",
   "repository": "nodeca/pako",
   "devDependencies": {
-    "mocha": "1.21.5",
+    "mocha": "^3.2.0",
     "benchmark": "*",
     "ansi": "*",
     "browserify": "*",
-    "eslint": "^2.1.0",
+    "eslint": "^3.12.2",
     "eslint-plugin-nodeca": "~1.0.3",
     "uglify-js": "*",
     "istanbul": "*",
     "ndoc": "*",
     "lodash": "*",
     "async": "*",
-    "grunt": "~0.4.4",
-    "grunt-cli": "~0.1.13",
-    "grunt-saucelabs": "~8.6.0",
-    "grunt-contrib-connect": "~0.9.0"
+    "grunt": "^1.0.1",
+    "grunt-cli": "^1.2.0",
+    "grunt-saucelabs": "^9.0.0",
+    "grunt-contrib-connect": "^1.0.2"
   }
 }

test/helpers.js

@@ -60,7 +60,7 @@ function testSingle(zlib_factory, pako_deflate, data, options, callback) {
   if (zlib_options.windowBits < 0) { zlib_options.windowBits = -zlib_options.windowBits; }
 
   var zlibStream = zlib_factory(zlib_options);
-  var buffers = [], nread = 0;
+  var buffers = [];
 
 
   zlibStream.on('error', function (err) {
@@ -71,7 +71,6 @@ function testSingle(zlib_factory, pako_deflate, data, options, callback) {
 
   zlibStream.on('data', function (chunk) {
     buffers.push(chunk);
-    nread += chunk.length;
   });
 
   zlibStream.on('end', function () {