Upgrade eunuch.
Ensure :Highlight commands are enabled by default on older Vim.
Merge branch 'upgrade-eunuch' of https://github.com/jszakmeister/vimfiles
Honor detected background color when it is trustworthy.
Document :help localnotes.
Remove obsolete ps_color.txt help file.
Add Startify plugin.
Add some missing files for startify.

Updated the plugin as well, since there seemed to be a good bug fix.
Add missing tags file for syntastic.
Add missing tags file for startify.
Merge branch 'add-missing-tags' of https://github.com/jszakmeister/vimfiles
Disable Startify on older Vim versions.
Try out tweaked szakdark with more-visible Search highlighting.
Activate all bundles before sourcing vimrc-before.vim.

This means all colorschemes are available for use directly in the
vimrc-before.vim script; it also introduces a small chicken-and-egg
problem for disabling bundles in vimrc-before.vim.  To solve this, a
vimrc-vars.vim script has been added.
Add Badwolf dark colorscheme.
Add Base16 colorscheme collection.
Add Gruvbox colorscheme.
Add Hemisu colorscheme.
Add Hybrid colorscheme.
Add Monokai colorscheme.