Add support for node 5.1.x

Add support for node 5.1.x by updating references to native dependencies.
Add versions between 5.1.x and 6.0.0 as validated (we will not show warning for them).

Author: rosen-vladimirov

package.json

@@ -29,20 +29,20 @@
     "broccoli": "0.16.4",
     "broccoli-funnel": "0.2.3",
     "bufferpack": "0.0.6",
-    "bufferutil": "https://github.com/telerik/bufferutil/tarball/v1.0.1.0",
+    "bufferutil": "https://github.com/telerik/bufferutil/tarball/v1.0.1.1",
     "byline": "4.2.1",
     "chalk": "1.1.0",
     "cli-table": "https://github.com/telerik/cli-table/tarball/v0.3.1.1",
     "colors": "1.1.2",
     "esprima": "2.7.0",
-    "ffi": "https://github.com/icenium/node-ffi/tarball/v2.0.0.0",
-    "fibers": "https://github.com/icenium/node-fibers/tarball/v1.0.6.2",
+    "ffi": "https://github.com/icenium/node-ffi/tarball/v2.0.0.1",
+    "fibers": "https://github.com/icenium/node-fibers/tarball/v1.0.6.3",
     "filesize": "3.1.2",
     "gaze": "0.5.1",
     "gulp": "3.9.0",
     "iconv-lite": "0.4.11",
     "inquirer": "0.9.0",
-    "ios-sim-portable": "1.0.13-epsilon",
+    "ios-sim-portable": "1.0.13",
     "lockfile": "1.0.1",
     "lodash": "3.10.0",
     "log4js": "0.6.26",
@@ -61,15 +61,15 @@
     "progress-stream": "1.1.1",
     "prompt": "https://github.com/Icenium/prompt/tarball/master",
     "properties-parser": "0.2.3",
-    "ref": "https://github.com/icenium/ref/tarball/v1.1.3.0",
-    "ref-struct": "https://github.com/telerik/ref-struct/tarball/v1.0.2.0",
+    "ref": "https://github.com/icenium/ref/tarball/v1.1.3.1",
+    "ref-struct": "https://github.com/telerik/ref-struct/tarball/v1.0.2.1",
     "rimraf": "2.4.2",
     "semver": "5.0.1",
     "shelljs": "0.5.1",
     "tabtab": "https://github.com/Icenium/node-tabtab/tarball/master",
     "temp": "0.8.3",
     "through2": "2.0.0",
-    "utf-8-validate": "https://github.com/telerik/utf-8-validate/tarball/v1.0.1.0",
+    "utf-8-validate": "https://github.com/telerik/utf-8-validate/tarball/v1.0.1.1",
     "vinyl-filter-since": "2.0.2",
     "winreg": "0.0.12",
     "ws": "0.7.1",
@@ -98,6 +98,6 @@
   },
   "license": "Apache-2.0",
   "engines": {
-    "node": ">=0.10.40 <0.11.0 || >=0.12.7 <0.13.0 || >=4.2.1 <5.0.0"
+    "node": ">=0.10.40 <0.11.0 || >=0.12.7 <0.13.0 || >=4.2.1 <5.0.0 || >=5.1.0 <6.0.0"
   }
 }