refs #5192 starting a little Menu refactoring
refs #5192 continued menu refactoring. not sure yet how good this idea is but seems to be already better than before
refs #5192 introducing a user menu
refs #5192 added generator for menus, updated more plugins to use menu class, fixed some bugs, improved design, fixed tests, ...
refs #5192 display category name in menu
refs #5192 use menudropdown widget for language selector as well to simplify code and have same look&feel
refs #5192 align dropdown menu
Merge remote-tracking branch 'origin/master' into 5192_menu
refs #5192 order user menu items + some UI tweaks and simplify
refs #5192 no longer needed to pass the menu instance in the event, only added it for easier refactoring
Merge remote-tracking branch 'origin/master' into 5192_menu
refs #5192 added some doc blocks and prevent the menu hooks from appearing in the documentation as they are deprecated
Merge pull request #291 from piwik/5192_menu

refs #5192 Simplify / improve top menu