vim: Update jellybeans
vim: Add spaceless mappings to repeated things
vim: Update zR and zM
vim: Add yankstack
vim: Move sharpshooter to snakeskin
sharp: Update before migrating into snakecharmer
vim: Move utility functions, make better disabled mappings
util: Change sharpfocus binding
sharp: Remove sharpshooter - it's now in snakecharmer
vim: General refactor of vimrc

Add coherent folding to all sections
Remove unused maps
Sort some stuff that was misplaced
vim: Move plugin setup to a list of github repos