Transition API now returns more "loops" for the page view's transition

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

 * DataTable_Row::sumRow has a new parameter $aggregationOperations which allows treating columns as min or max (not only sum)
 * The aggregation operations can be set on any data table or passed to ArchiveProcessing_Period::archiveDataTable()
 * The Actions plugin uses the mechanism to aggregate the new metrics as min and max
 * The metrics are in the API output but not in processed reports
 * The min/max values are shown in the tooltip that appears when hovering the average generation times
 * Integration test updates

 * adding avg_time_generation to Actions.get + integration tests
 * adding sparkline for average generation time to Visitors > Overview
 * changing number formatting to 0.XXs instead of XXXms + test cases
 * tooltip for reports with avg. generation time: "average based on X hit(s)"
 * log import: support generation_time_milli (not only generation_time_micro)
 * example for importing generation time from logs in read me

git-svn-id: http://dev.piwik.org/svn/trunk@7259 59fd770c-687e-43c8-a1e3-f5a4ff64c105

Fixes #3055, fixed bug with CSV Renderer where column order was not kept constant when rendering DataTable_Arrays. Also modified OneVisitorTwoVisits test by adding more outlink actions and one CSV test.


git-svn-id: http://dev.piwik.org/svn/trunk@6276 59fd770c-687e-43c8-a1e3-f5a4ff64c105

git-svn-id: http://dev.piwik.org/svn/trunk@5168 59fd770c-687e-43c8-a1e3-f5a4ff64c105

Fixing "test bug", now the "parameter=Should display" is indeed displayed like it should have been in test API outputs
Kuddos Julien for review

git-svn-id: http://dev.piwik.org/svn/trunk@4880 59fd770c-687e-43c8-a1e3-f5a4ff64c105

More mysqli fun.. now sorting items with the same "sorted column" value by "label" to ensure consistent ordering if the sql driver decides to return rows in random order...

git-svn-id: http://dev.piwik.org/svn/trunk@4700 59fd770c-687e-43c8-a1e3-f5a4ff64c105

 * API functions returning data now have a new optional 'segment' parameter. segment can define a Visitor segment dynamically that will be applied to the report. For example, &segment=country==FR;actions>=3 (AND, OR supported. Only == and != supported currently, but easy to add more)
 * For API requests with a segment parameter, the reports will now be processed on the fly, and only the requested plugin report will be archived.
 * All plugins now define the 'segments', with a name, category, SQL field, filter, etc.
 * Simplifying archiving code a bit
 * Fixes #2069 Exit rate computation
 * New widget: lists the Top Keywords for a page URL, Widgets for a website only. Maybe later we could create a widget category "For your site"?
  * This widget is pretty cool SEO wise, but maybe the PHP snippet should do caching (not so good hitting the API on each page view... but why not?)
 * still to do!

git-svn-id: http://dev.piwik.org/svn/trunk@3870 59fd770c-687e-43c8-a1e3-f5a4ff64c105

Fixes #173 - making all filters recursive by default (no performance impact since it won't load the tables if they were not loaded in the API). Updating all filters to reflect new abstract class signature

git-svn-id: http://dev.piwik.org/svn/trunk@3764 59fd770c-687e-43c8-a1e3-f5a4ff64c105

Integration tests were often different simply because the internal idsubdatatable in the response was different. However. this idsubtable is really just an internal ID and it is not expected that this ID is the same across several archiving processes. Therefore integration tests will now set a special flag to remove the ID from the response, to minimize noise.

git-svn-id: http://dev.piwik.org/svn/trunk@2495 59fd770c-687e-43c8-a1e3-f5a4ff64c105

 * now reporting Actions per visit 
 * reporting Average Visit duration instead of total visit duration
 * removed api getMaxActionsReturning() as it doesn't sound like a useful metric
 * udpated tests to test the new metrics 

git-svn-id: http://dev.piwik.org/svn/trunk@2494 59fd770c-687e-43c8-a1e3-f5a4ff64c105

 * updating exit_rate calculation to have nb of pages view as the denominator, rather than number of visits. Complies with WAA Page Exit Ratio (ie. Exit rate) proposal.

git-svn-id: http://dev.piwik.org/svn/trunk@2490 59fd770c-687e-43c8-a1e3-f5a4ff64c105

 * fixing integration tests
 * fixing bug when no visit (called function on non object)
Refs #818: all_tests.php is now green on my box

git-svn-id: http://dev.piwik.org/svn/trunk@2474 59fd770c-687e-43c8-a1e3-f5a4ff64c105

Fixing bug in Archiving found with this new test suite (max_actions was incorrectly summed during archiving, rather than max() operation)
Updating expected file as naming convention changed in previous commit
Refs #1446


git-svn-id: http://dev.piwik.org/svn/trunk@2442 59fd770c-687e-43c8-a1e3-f5a4ff64c105

Also adding integration test suite in place.

 * Adding new mechanism to trigger known tracking requests, then call all API methods get* and compare XML to the previous 'expected' XML.
 * make sure overwritten config files are not read during tests. Use defaults from global.ini.php.
 * piwik.php Tracker allow calling script to force Datetime and user IP for a specific request. 
 * Wrote 3 main tests
  * wrong tracking requests should not return error and should not record anything 
  * standard one visitor, 2 visits, with page view, download, outlink and goal tracked
  * Added integration test as an example in the ExampleAPI plugin (pretty simple to add testing code)
TODO 
 * Finish PiwikTracker and show it in UI
 * Show how to use image based tracker in UI
 * Add more tests (multi periods and multi sites) in Main.test.php
 * Fix failing Config.test.php test (when ran via all_tests.php doesn't fail otherwise)

git-svn-id: http://dev.piwik.org/svn/trunk@2429 59fd770c-687e-43c8-a1e3-f5a4ff64c105