set 'wiki-link' class for studip wiki links; shows wiki-icon at upper right of link; fixes #70
set 'wiki-link' class for studip wiki links; shows wiki-icon at upper right of link; fixes #70
added double-click handler for wiki-links
fixed encoding/decoding of URI items of studip wiki links
added infobox text about studip-wiki links
translated some texts to german and fixed some encoding issues but not yet fully done