A few outdated modules

### Steps to reproduce:
1. Run the following command:

  ```sh
$ npm outdated --depth 0 --no-color | sort
```

### Actual results:

| Package | Current | Wanted | Latest | Location |
|----|----:|----:|----:|----|
| aws-sdk                  | 2.0.5  | 2.0.5 |  2.0.11 | aws-sdk |
| chai                      | 1.5.0 |  1.5.0  | 1.9.1 | chai
| cors                    |  2.2.0 |  2.2.0  | 2.4.1 | cors
| express                |  3.15.2 | 3.15.3 |  4.7.4 | express
| express-logging      | 0.1.0-DEV  |   git  |   git | express-logging
| hawk                    |  2.0.0 |  2.0.0 |  2.2.3 | hawk
| hiredis                |  0.1.16 | 0.1.16 |  0.1.17 | hiredis
| i18n-abide              | 0.0.20 | 0.0.20 | 0.0.22 | i18n-abide
| jsxgettext-recursive   |   0.0.4  | 0.0.4 |  0.0.5 | jsxgettext-recursive
| jwcrypto               |   0.4.4  | 0.4.4 |  0.5.0 | jwcrypto
| mocha                  |   1.8.2  | 1.8.2 | 1.21.3 | mocha
| phone                |     0.0.6 |  0.0.6  | 1.0.2 | phone
| raven                |     0.6.2  | 0.6.2 |  0.7.0 | raven
| redis                 |   0.10.1 | 0.10.1 | 0.11.0 | redis
| request              |    2.34.0 | 2.34.0 | 2.39.0 | request
| sinon                   |  1.9.1 |  1.9.1|  1.10.3 | sinon
| sodium                |   1.0.11 | 1.0.11|  1.0.13 | sodium
| supertest               | 0.10.0 | 0.10.0|  0.13.0 | supertest
| yargs                   |  1.2.6 |  1.2.6 |   1.3.1 | yargs