revert 2d27720df26 as it broke the All websites dashboard (showing {{ 'string' }} in the UI)
http://builds-artifacts.piwik.org/ui-tests.master/3998.1/screenshot-diffs/singlediff.html?processed=../processed-ui-screenshots/UIIntegrationTest_widgetize_allwebsites.png&expected=UIIntegrationTest_widgetize_allwebsites.png&github=UIIntegrationTest_widgetize_allwebsites.png
2.5.0-b2 with working All websites dashboard