bashrc: add two new aliases

Signed-off-by: Niklas Koep <niklas.koep@gmail.com>
git: globally ignore .vim.custom files

Signed-off-by: Niklas Koep <niklas.koep@gmail.com>
hexchat: version bump

Signed-off-by: Niklas Koep <niklas.koep@gmail.com>
vimrc: load project configs if present

Signed-off-by: Niklas Koep <niklas.koep@gmail.com>
vim: add rust plugin

Signed-off-by: Niklas Koep <niklas.koep@gmail.com>
vim: add vim-airline plugin

Signed-off-by: Niklas Koep <niklas.koep@gmail.com>