function s=cosmo_wtf(param)
% return system, toolbox and externals information
%
% s=cosmo_wtf([param])
%
% Parameters
% param optional; if provided it can be 'is_octave' or 'is_matlab'
%
% Output:
%
% s - if param is not provided it returns a string
% representation with system information;
% - if param is 'is_{octave,matlab}' a boolean is returned
% - if param is 'version_number' then a numeric vector with
% version information is returned; for example version
% '8.5.0.197613' results in [8, 5, 0, 197613].
% - if param is one of 'computer', 'environment', version',
% 'toolboxes', 'cosmo_externals', 'cosmo_files', or 'java',
% then the information of that parameter is returned.
%
%
% Examples:
% % print the information to standard out (the command window)
% cosmo_wtf();
%
% % store the information in the variable 'w':
% w=cosmo_wtf();
%
% % see if this environment is octave
% b=cosmo_wtf('is_octave');
%
% Notes:
% - this function is intended to get system information in user support
% situations.
%
% # For CoSMoMVPA's copyright information and license terms, #
% # see the COPYING file distributed with CoSMoMVPA. #
