refs #5940 moved files into a subfolder framework, added autoloader to remove duplicated code to load autoload.php and to be able to register more autoloaders (eg for test files) on demand. This I got read of many includes that had to be updated all the time and that had to be updated all the time when moving iles

refs #5940 we might stay backwards compatible this way for 2 months. moved some tests from unit to integration and explained when a test is a unit test, an integration test or a system test.

refs #5940 put tests in correct folders, better testsuite names, some tests still fail and I cannot figure out why

Fixes #6313 - When a user starts to get a User ID set, then we set this User ID to the existing visit rather than create a new visit for this user id specifically

refs #4996 disable contents live test for now as it works on my server but returns different order or so on travis and I cannot fix it

refs #4996 use content type in case it was a standalone content impression request which was not performed along an outlink or download or ...