git: ff or no-ff merge aliases
git: better gup; and a reset for the ages
vim: ctrlp includes ignored files
tmux: elixir run current file
bash: better ls options ll and l
vim: markdown column wrapping at 80

Markdown is pushed to ftplugins/markdown.vim, but we needed to use
tpope/vim-markdown so that *.md files would set filetype to markdown.
vim: <leader>a runs mix test for elixir files
bash: java home for jre