Remove dependency on hawk, upgrade request

This patch removes the explicit dependency on hawk, and upgrades request
to the newest version. It also removes node 0.10 from the testing grid,
as this version has been EOL'd by the node foundation, and doesn't support
es6 syntax used in the newer introduced dependencies.

https://nodesecurity.io/advisories/566
https://hackerone.com/reports/310439
https://github.com/nodejs/Release

Closes #346

Author: krotscheck

.travis.yml

@@ -17,7 +17,6 @@ addons:
 
 env:
   matrix:
-   - NODE_VERSION="0.10"
    - NODE_VERSION="6" RETIRE=true
    - NODE_VERSION="4"
    - NODE_VERSION="5"

appveyor.yml

@@ -2,7 +2,6 @@ os: Visual Studio 2015
 
 environment:
   matrix:
-    - nodejs_version: 0.10
     - nodejs_version: 4
     - nodejs_version: 6
     - nodejs_version: 8

package.json

@@ -24,8 +24,7 @@
     "nopt": "^4.0.1",
     "npmlog": "^4.0.2",
     "rc": "^1.1.7",
-    "request": "2.81.0",
-    "hawk":"3.1.3",
+    "request": "2.83.0",
     "rimraf": "^2.6.1",
     "semver": "^5.3.0",
     "detect-libc": "^1.0.2",