Update to latest version of pathogen
Add .lof to list of files vim shouldn't try to open

.lof seems to be a LaTeX generated list-of-files
Change modeline precedes and extends chars

The precedes and extends characters were ← and → respectively, but → is
longer than the width of a character (at least in the Inconsolata font)
and so the arrow-head will appear off the edge of the screen where it
can't be seen. I've changed the arrows to guillemets « and », which fit
in with the symbol for tabs and don't have the problems the arrows did.