Removing not needed dispatchers. Tomcat now handles static content

Closes #690 (closed)

@piotr.gawron this MR removes several dispatcher servlets. The idea is to let tomcat handle static resources and let spring handle everything under /api

/ redirect is bugged as you have seen, therefor we use index.html to redirect, which is the default landing page for tomcat.

This works on my machine but it would be wise to test this in some other scenarios before making a release out of it.