Fix logo CSS layout rules

Here is a patch.

We should prevent wrapping for bigger screens when there is site-name element.

It seems we need display block now also on the link for slightly better calculation of logo link boundaries.

We noticed some layout problems for some edge cases - using site name and additional blocks in navbar region. The new patch should properly apply grid layout to navbar region and is also fixing some slight position problems.

Setting negative margins without increasing width of element will create errors in layout, a new patch should fix this and clean previously added wrong CSS rules.

Changing issue title also because these are now general fixes and not just for IE11.

The previous patch was interdiff again, attaching proper one this time.

And fixing a c&p error...

Again made interdiff instead of a patch, man...

Committed.