matlab preference and shortcuts save and restore

save or restore matlab preference, shortcuts, layout,startup, finish, etc.

%MANAGE_PREF - Save or restore matlab preference
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% Syntax:
% manage_pref
% manage_pref(defdir)
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% Inputs:
% defdir: defaut save or restore path
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% Outputs:
% none
%
% Examples:
% manage_pref('D:\document\MATLAB\Others\pref')
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% Other m-files required:
%
% See also:

% Author: Wang Lei
% Organization: Nanjing University of Aeronautics and Astronautics (NUAA), China
% Email: [e-mail]
% Last revision: 07-Jan-2011