[Vim] Add styx.vim highlights for diff file type
[Fish] Remove unused functions
[Vim] Move plug-in declarations to Spore file

I was originally attracted to the idea of listing plug-ins in the vimrc,
however it turns out to be less cumbersome to maintain a separate file.
[Vim] Fix Spore's output on illegal argument
[Vim] Update Spore plug-in after script changes
[Vim] Update Spore README
[Vim] Use execute pathogen#infect() not call

Per recommendation of pathogen.vim. In recent versions, allows for
selective disabling of plug-ins on startup.
[Vim] Use slightly more flexible :find map
[Vim] Separate :Cdo and :Cdofile commands
[Vim] Simplify :edit maps

Rarely if ever used <Leader>e[svt], so it made sense to eliminate them,
thus reducing the length of the sequence, and merge with <Space>
mappings.
[Vim] Set 'wildignore' and 'suffixes'

I've been finding 'suffixes' to be massively helpful when working with,
e.g., LESS files where I always want the .less rather than the compiled
.css, but I may also work with plain CSS projects.
[Vim] Fix Jekyll helper bugs, improve names
[Fish] Restore BLOG environment var