minor style updates- remove obsolete odd/even- removed middle "xs" as required by Bootstrap4, made e.g. "col-xs-6" to "col-6"- Bootstrap4 has new sm grid tier, so bumped former grid tier for md" and "lg" up one level up
New package: openacs-bootstrap5-themeThis is the initial checking of the OpenACS Bootstrap 5 Theme,which is a port of the OpenACS Bootstrap 3 Theme.In its current, premature state, the basic functionality is there forthe openacs_bootstrap5 (openacs_bootstrap5_turquois untouched), but itcovers already the base functionality of xowiki (longer way to go fore.g. xowf, or the various other packages). Also, the graphicalfine-tuning has to be done, but e.g. glyphicons are already replacedby Bootstrap Icons, etc.