add "nickname" class to all nicknames within the page
add the playerlevel to all "nickname"-classed elements
prevent browser tooltip
added some comments
moved nickname css class commit to different branch.

This reverts commit 341b3d4a7d1191c0c99079c803569c83cf6a0eee.
Merge pull request #334 from boombuler/player_lvl_on_infoscreen

Fixed the guess player level plugin on the portaldetails