Possible security vulnerabilities

[iteles]

As noted on the homepage of this repository, there are currently possible security vulnerabilities.

@stianr I believe that as per our email exchange you would like this to be reviewed as a priority today? If these can be updated without much time involved, they should be updated, however if the updates carry breaking changes, we will need your guidance on whether to spend time on this over #678

We'll begin by investigating.

[stianr]

@iteles yes please. Do you have access to the alerts - I think there are 3-4.

[sophielevens]

Having looked into this, I have:

• upgraded Hoek
• removed jsdocs (which was unused)
• not updated moment as it would involve updating HapiJs to version 17 which is a major change