Fix context menu width

[martinstarman]

Fix for context menu when strings is longer than menu width.

After this patch

Plus remove some unnecessary spaces.

[marcelgerber]

Works for me. Would be nice to fix it.

[peterflynn]

This CSS change will affect code the hint popup's width too, so we should be careful to test that as well.

[couzteau]

EWF had the same problem with long font names in code hints. There we chose to use an ellipsis,
i.e. Rychlá dokumen... Should we do the same in the context menus?

[marcelgerber]

I don't really like this idea, because maybe in some language you can't guess what it means when it is truncated.

[peterflynn]

The CSS change applies to the wrong part of the HTML menu bar (.toolbar .nav is the overall menu bar, not something in the dropdowns). But I can't find anywhere in the HTML menu bar DOM structure where applying this fix does work. So it appears it won't fix ones like #5411.

[peterflynn]

@martinstarman I'm going to see if I can come up with anything more general. At first glance it seems like the float approach we're currently using should 'just work' without any width tricks needed... http://jsfiddle.net/rGwNJ/

Given that it used to work in the main menus at least, I'm guessing some unrelated CSS update (or our Bootstrap upgrade) broke stuff unexpectedly.

[martinstarman]

@peterflynn probably yes, but I played with it for 3 days and I have not found another solution.

[peterflynn]

@martinstarman I was able to come up with a more general solution which was landed in PR #5580, so I'm closing this for now. My fix may not work across browsers, so we may have to revisit this down the road -- I put some detailed notes in #4593 for future reference, though.