Refs #3465, fix regression for flattener filter where queued filters were applied on the flattened datatable.

This will prevent random build failures such as https://travis-ci.org/piwik/piwik/jobs/6399322

Refs #3465, make sure labels are associated with correct rows in multi-row evolution after generic filters (ie, Sort) are applied.

Publishing the Phpstorm custom PSR coding style for others to reuse (and to make sure I don't lose it, since we want to apply it again (eg. every year or so))

This fixes #3895

the mass conversion was applied in: [ae4b0316]

using find results in a different file order depending on the system. in some cases, this leads to dependency errors. therefore, we need to make the order of the files explicit.

this way, dropdown menus without timeouts (like the ones on piwik.org) work in page overlay.

one still has to be a little careful to move the mouse slow enough, but that's the best we can do.

Fixes #3482, apply quick fix so Piwik works when ranking query is disabled and added test for disabled ranking query. Added FIXME comment to make sure underlying issue is eventually dealt with.

Refs #3116, make summary row label readable in ecommerce goals reports and add tests for those changes.

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when using an empty segment parameter, clicking a sparkline resulted in the error "Segment parameter 'undefined' does not appear to have a valid format."

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 * removes code duplication (we already had a minor inconsistent bug fix - shame on us!)
 * show the sorted column and report documentation after using the search box

@Stefan: the issues I reported are fixed now

@Everyone: this is turning into a general data table improvement ticket