fixed lualatex

Signed-off-by: Ronert Obst <ronert.obst@gmail.com>
added cleanupbuffersafe on save
added keys to insert new lines
trying to fix yas

Signed-off-by: Ronert Obst <ronert.obst@gmail.com>
updated yas and fixed cal snippet

Signed-off-by: Ronert Obst <ronert.obst@gmail.com>