Change phpdoc layout to new-black (www.phpdoc.org/templates).
Refs #3388, fix regression in initial load of evolution graphs.
Refs #3388, fix another regression that affects row evolution popups w/ external series toggle.
Fixes #3465, refactor row evolution code to fix bug where if no labels are specified and last period has no labels, no data is returned. Refactoring also contains optimization for case where no labels are specified.

Notes:
  * Simplified DataTableManipulator and derived classes.
  * Allow LabelFilter to use multiple labels. Can be used by specifying array for label query parameter (ie, label[]=...).
  * Removed getFilteredTableFromLabel function from datatable types and add getEmptyClone to DataTable_Array.
  * Added setIdSite to php tracker PiwikTracker.
Properly check for empty documentTitle and category in PiwikTracker
Adding new test with page name "0"

Which I think should probably work, but currently shows "Page name not defined"
Tweaks.
Fixes #3833 adding check upstream. Thx for the report & patch, very nice bug to fix!
Simplify Piwik_Config handling.
Simplify Piwik_Config handling even more
Add new setting in admin UI to switch between stable and beta release channel.

Add new translation to document the setting.

fixes #3828
Add new setting in admin UI to switch between stable and beta release channel.

Add new translation to document the setting.

fixes #3828
Refs #3833 - Piwik_Period's toString method does not return the type of the Period and a "Array to String conversion" notice is triggered. So we use the getLabel accessor.
Merge branch 'master' of https://github.com/piwik/piwik
Another Piwik::log fix in PluginsManager. Not working in tracker mode.
refs #3530 fixing overlay status bar in ie7 and ie8
Some documentation correction.
Merge branch 'master' of github.com:piwik/piwik
Add search engines
Add search engines