vim: update vim plugins

Signed-off-by: Guangliang Zhao <lucienchao@gmail.com>
gitignore: ignore ssh related files

Signed-off-by: Guangliang Zhao <lucienchao@gmail.com>
mail: add work accont related

Signed-off-by: Guangliang Zhao <lucienchao@gmail.com>
gitignore: ignore ssh related files

Signed-off-by: Guangliang Zhao <lucienchao@gmail.com>