Combine functions{Pre,Post}.zsh into functions.zsh. There is no reason
or sense in splitting the functions like that and differentiating
between functions that should be loaded before and after sourcing the
aliases.
Rename the functions from funcPre, making their aliases superfluous.
Add and rephrased option comments.
unset CDABLE_VARS since it only works with cd and thus leads to problems
when trying to use the notation with other programs (since it became a
habit)
Set new options.
Add functions comp-conf and comp-source heavily inspired by romkatvs
jit & jit-source.
Replace every call to source with comp-source.
Remove existence check since it is done in comp-source.
Replace still existing readable checks with existence checks.
Switch from gnome-terminal to st (see fork on github).
Open new terminal by default in the same working-dir as current window.
Modify scratchpad-terminal to work with every terminal.
