Improved the config of the whole project. The root app context will be
loaded in the web.xml now. The context of the shogun servlet will
inherit from the root context, so that common stuff like dataSource or
hibernate transaction manager will be available there. MVC-Related
things (e.g. scan for controllers or definition of views) will be
declared in the child context of the servlet. See
http://syntx.co/languages-frameworks/difference-between-loading-context-via-dispatcherservlet-and-contextloaderlistener/
for more information.
Merge pull request #35 from buehner/improvedappconfig

Improved the config of the whole project