refs #2589 as the redirect method uses only piwikHelper methods it belongs rather to the piwikHelper class

Refs #4189, added UI unit test base class and tests for ViewDataTable. Refactored capture.js to make new type of testing possible.

When reports set a pretty label in the column label_html, this label will be used in the Row Evolution popover instead of "label"

refs #4564 avoid possible failure during update because of missing permissions -> Get the option value of delegated management directly

refs #4373 fixes the merged assets file was only generate if it did not exist before and fix it also was not regenerated if a plugin was not updated. Therefore include the version number in the cache buster.

refs #4564 #2589 support for multi superuser

Show Piwik for all core plugins

fixes #4578

refs #4578

refs #4578

Conflicts:
	plugins/CustomAlerts