Don't use sudo if implicitly called by Pacman frontend

Don't rely on alias expansion to handle Pacman because aliases
are not expanded in sudo.

Signed-off-by: Sorin Ionescu <sorin.ionescu@gmail.com>
Revert "Remove utility aliases for Cygwin"

This reverts commit d368d0536b7e857b8bd98cb7f5f547bac8b96bac.
Revert "Warn that Cygwin is not supported"

This reverts commit b1abe7a84538097bf93e2c6677cedc7d7a980f68.
Add `custom` folder plus scripts and aliases.
Activate custom scripts and customise `.zshrc`
Add `prompt_jakob_setup` file and activate prompt.
Customise `zshenv`.
Customise `zpreztorc`.
Update alias definitions.
Update alias definitions.
Enhance aliases.
Enhance zshrc to be used on other boxes as well.
Enhance zshr (add if checks for named dirs etc)
Enhance aliases
Small change to prompt_jakob_setup.
Update alias definitions.