====== How to close the NeuroElf GUI after clearing everything ======

===== Motivation =====
Sometimes you accidentally enter

<code matlab clearclasses.m>clear classes</code>

which then, inadvertently, also clears the contents of all displayed objects, which makes Matlab (due to the GUI's callbacks) go haywire and spit out tons of errors and warnings.

===== Solution =====
To get a true fresh start, you first need to close the GUI (without invoking any further callbacks). To do so, enter

<code matlab clearfiguresandclasses.m>% get a handle to the xfigure class (default constructor)
xfig = xfigure;

% then delete all objects without further ado
xfig.DeleteAllFigures;

% and *then* get a fresh start
clear classes;</code>