0.1.2.1

• Added Cabal flag debug (off by default) for printing how vim runs to stderr.

0.1.2.0

• Better treatment of handles of temporary files.
• Using WriteMode for vim process std_in prevents vim from getting unresponsive on Ctrl-C interrupts while still doing well its tasks.
• Using /dev/null for vim process std_out.
• Exit program as soon as vim fails.