added a test html to check the expand/collapse
loadLarge now supports expand/collapse btn
Merge remote-tracking branch 'origin/feat_rightAlignment' into cleanUp
added collapse/expand into exmaralda sample
added "impressum.html" (will be loaded into "index.html"),
changed few style-settings (deleted gap between "home"-icon and
navigation-tree, set vertical-alignment of td.annoName to "top", to
improve usability of the "expand table-row"-function, changed background
color of the body)