Remove all plugins and unnecessary files.

(Prepare for pathogen plugin)
Add pathogen plugin.
Messing around with the colorscheme.

Make vimdiff at least readable. Add colors for Signify. Pick colors
that will hopefully look better than the current scheme.
Fix typos in vimrc and add some more options.
Add some basic ignore patterns.

These are just the ones I can come up with on the spot a more
elaborate list will have to be composed later.
Fix mistake in date format.
Make the first line in git commit sensible.

It is normally linked to Keyword. Title makes more sense, and looks
better.
Change layout and whitespacing.
Show trailing whitespace in files.

(Removed commented settings that I don't use.)