corrected yml files for doctrine
updated entities to new database model
implemented REST-Controller for packages
added get method with given id to PackagesController
added comments and corrected a URL in PackagesController(Test)
implemented get actions for CataloguesController
added catalogues to creation of package
added first route definition for loading a simple text
added a second controller to check if it is working correctly
implemented loading of javascript template from the server side
adjusted to fit new development environment
corrected server side code and test for packages
fixed bug in a test case
implemented adding a new package to database
adjusted javascript to edit a package
fixed creating package bug
changed rest testings to json
added sorting functionality to packages controller
implemented field selection in package controller
extracted some method for ListResources