Revert "major refactoring and cleanup; more objects, pass alarm data"

This reverts commit 60a8d06e7bcb86044aaf2cb6e990fb9d1cbb605f.
Fixing GeoJSONFeature
Adding a single-node map page.

Now there is a link on the node's page to display the node on a map if
it has geo coordinates.
Removed references to vulnerabilty servlets from web.xml.
Cleaned up more vulnerability lint in the webapp config files.
Removed unnecessary liquibase repository from POM. Fixes bug NMS-5678.
Merge branch 'master' into TN-master