bump deps to fix axios vulnerability

[dceejay]

• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)

Proposed changes

Just bumping up the axis dependency to fix a reported vulnerability - plus some of the the other build tools to keep them current.

Replaces PR #12 which also bumped bcrypt that we can't do just yet.

Checklist

• I have read the contribution guidelines
• For non-bugfix PRs, I have discussed this change on the forum/slack team.
• I have run grunt to verify the unit tests pass
• I have added suitable unit tests to cover the new/changed functionality

[coveralls]

Coverage remained the same at 82.899% when pulling c2f1c64 on axios-update into 96f558e on master.