Change default mappings in readline to emacs mode.

Also add readline mappings for character search so they match my emacs
bindings.
Zsh zle bindings default in emacs mode.

Also changed map for jumping by character to match my emacs mappings,
and split the different types of deleting backwards (delete entire
filename vs delete part of filename) to match readline bindings.
Removed some aliases I never use.
Change default fonts for home laptops.