Upgrade @angular package versions

[mezarin]

Addresses issue: #10

Upgrade @angular and other dependencies to more recent versions to remove various security vulnerabilities. One of them being the one reported: wycats / handlebars.js handlebars CVE-2015-8861.

A workaround is being introduced for the vulnerability associated with the hoek package: CVE-2018-3728 (updated package-lock.json to use hoek 4.2.1). angular-devkit/build-angular@0.6.* appears to have the same issue.

For more details see: 
https://github.com/angular/angular-cli/issues/10480

npm ls hoek
└─┬ @angular-devkit/build-angular@0.6.8
  └─┬ node-sass@4.9.0
    └─┬ request@2.79.0
      └─┬ hawk@3.1.3
        ├─┬ boom@2.10.1
        │ └── hoek@2.16.3  deduped
        ├── hoek@2.16.3 
        └─┬ sntp@1.0.9
          └── hoek@2.16.3  deduped

Another workaround (update package-lock.json to use tunnel-agent@0.6.0) was introduced for vulnerability:
WARN notice [SECURITY] tunnel-agent has the following vulnerability: 1 moderate. Go here for more details: https://nodesecurity.io/advisories?search=tunnel-agent&version=0.4.3

Here are a couple of pertinent karma package security vulnerability related issues that are still open:

https://github.com/karma-runner/karma/issues/2994
https://github.com/IntegratedAlarmSystem-Group/ias-display/issues/28

[dshimo]

👍