Add localization entry for non-existing italian localization in texi2html initialization, avoids warning. 
Add localization entry for non-existing italian localization in texi2html initialization, avoids warning. 
WoLpH/skim,ycaihua/skim-app,WoLpH/skim,WoLpH/skim,ycaihua/skim-app,ycaihua/skim-app,WoLpH/skim,WoLpH/skim,ycaihua/skim-app,ycaihua/skim-app