Minor CSS changes in debug modal

Now CSS part of modal window is located in debug_modal.js file - that
was made because there are different styles for gameview and adminpart -
so we dont want to duplicate our debug window CSS code, since it is
present bot on gameview and admin parts. Now CSS generates from JS file
itself
Debugger fix - view for admin only

Now debug log can be seen only by admin or anyone with rank > 5
Removed bar.php - added jQuery bars instead

Removed that big class.imagebar.php file and changed generated images
with unobtrusive jQuery bars for displaying HP, EXP, Energy, etc. Now al
the bars are depending on jQuery, and generated out of ajax.js file. See
structure in default tpl to understand how it works.