This allows to (re-)set properties via POST-requests to the environment endpoint.

Use tabs for idents, small lint fixes

* make sure non-UP applications are shown at the top of the list  (closes #55)
* refinements for health-section
* remove-button for all apps
* fixed headers in details view

closes #35

using Gulp & Browserify
with a little help from https://blog.codecentric.de/en/2014/08/angularjs-browserify