hide items on smaller screens
remove unused responsive rule
shrink header images
fix color
display navbar-utility items in single line even on tiny screen
make navbar-utility line 100% wide on small screens
spread all buttons
remove redundant navbar-collapse-1 class
do not restrict collapsable menu height
avoid white space under footer
do not show expanded menu on small screens on default
Automatic commit of package [spacewalk-branding] release [2.3.15-1].