This should fix the unit tests.

added a test for expanded and flat. Please not that the expected flat result is wrong, it might work when merging the flattened refactoring

Added tests, there's one failing need to find a solution.

We are using divezone.net because @mattab says that he will never fix the broken certificate. If this test ever fails in the future, go after him :p

postponing deprecation window as we are planning 2.11.2 and we can't break API in minor version (semver).
they can be broken in 2.12.0 planned for March

I also replaced the check that does a request against Piwik to check
whether it is installed with `SettingsPiwik::isInstalled()` as discussed
recently

Making algorithm processing unique visitors across websites actually work, refs https://github.com/PiwikPRO/plugin-MetaSites/issues/3

* No longer any segmentValue in subtables, this was a bug
* Referer.getReferrerType should not have any segments
* Order of some segments slightly changed in metadata output since we
  do process them earlier now
* Append segemnt refererType=search to keywords

refs #4633 a couple of code improvements eg we do not need to run a filter within a filter and run them recursive. not sure if recursive is a good idea though

refs #4633 rename segment filter to segment, fixed a bug re visitTime and extracted code into a filter

Add new --w3c-field-regex option to log importer which allows specifying regex for any w3c extended log field. Can combine this option w/ --regex-group-to-...-cvar options to track any field that the importer doesn't natively recognize.