cperl: Improved indentation settings.

1. Don't merge "else" onto the same line as the preceding "}" character.

2. Format parameters like blocks, to save screen space.
python: Setup PYTHONUSERBASE.

Set PYTHONUSERBASE for when I install python modules into my home
directory.
emacs (multiple-cursors): More functions that can be applied.

More functions that can be applied to multiple cursors.