Added the missing font.css (doh!) to the git repo.  They work properly now :)
font.css:  Added a try/except block to the file for those situations where the CSS is rendered outside of Gate One itself (e.g. logviewer.py --html or gateone.py --combine_css).
logviewer.py:  Fixed a bug with the new HTML output format where it was not detecting the number of columns properly (used 'cols' when it should have been using 'columns').
Help plugin: Added a missing file:  help.css.  Apparently it's been missing for weeks!  Sorry about that.  Note to self:  Run 'git status' more often.  (not that anyone uses the help plugin).