DropDownColumns and hovering before js has loaded

[pxamike]

• If you have enabled themes.configuration.menu.main.dropdownColumns = 1 (and perhaps themes.configuration.menu.main.showThirdNavLevel = 0 ), sometimes when hovering over the first level, an menu-item can get stuck in a "open"-state (and does the opposite when hovering over it). Very possible that the cause is that I hover over it before the javascript has started.

[pxamike]

Should be fixed with pull-request.