v1.26.0 release hotfix (#295)

* updated development dependencies to bump lodash version to 4.17.19

* updated rpki-validator version

* update rpki-validator to support external vrps

* improved stability of monitorRPKI, increased test coverage

.travis.yml

@@ -9,6 +9,8 @@ jobs:
       script: npm run test
     - name: "Tests reports"
       script: npm run test-reports
+    - name: "Tests rpki"
+      script: npm run test-rpki
     - name: "Tests with proxy"
       before_script:
         - npm install -g anyproxy