~/.vimrc: Switch to no syntax highlighting by default

This is toggle-able with `<leader>S`, which is `<backslash>S` on my
machine.

.vimrc

endif
" Have syntax highlighting and non-vi features
syntax on
filetype plugin indent on
set t_Co=256
colorscheme hybrid
highlight LineNr ctermfg=Gray guifg=Gray
highlight SpecialKey ctermfg=LightGray guifg=LightGray
highlight NonText ctermfg=LightGray guifg=LightGray
" Indent without helping me.
set autoindent
set statusline=%F%m%r%h%w[%L][%{&ff}]%y[%p%%][%04l,%04v]
nnoremap <leader>S :if exists("g:syntax_on") <Bar> syntax off <Bar> else <Bar> syntax enable <Bar> endif <CR>
""" Filetype specific stuff comes now...
" Have Vala highlighted, too