Gets info about latest version from GitHub API rather than openfnirs.org (#92)

    % If it has been a week since Homer checked for an update

    if (datetime - GetLastCheckForUpdates() > duration(168,0,0))

        url = 'https://openfnirs.org/software/homer/homer3/';        

        [s, status] = urlread(url,'timeout',4);

        if (~status)

        SetLastCheckForUpdates();

        % Open a hidden web browser

        % Open a hidden web browser and poll openfnirs.org

        % If user has a web browser open MATLAB will unfortunately just

        % open the page there

        wb = com.mathworks.mde.webbrowser.WebBrowser.createBrowser;

        wb.setCurrentLocation(url);

        setCurrentLocation(wb, url);

        p = getParentRecursive(wb);

        p.setVisible(0);

        version = regexp(s, 'id="version">(.*?)<\/', 'tokens');

        desc = regexp(s, 'id="description">(.*?)<\/', 'tokens');

        try  % Version description might not exist

            updateTxt = [version{1}{1},': ', desc{1}{1}];

        catch

            updateTxt = version{1}{1};

        end

        web_vrnum = str2cell(version{1}{1},'.');

        % Get latest release info from GitHub API

        release_info = webread('https://api.github.com/repos/BUNPC/Homer3/releases/latest');

        tag = release_info.tag_name;

        update_body_text = release_info.body;

        dest = release_info.html_url;

        latest_vrnum = tag;

        latest_vrnum(isletter(latest_vrnum)) = [];

        latest_vrnum = transpose(split(latest_vrnum, '.'));

        this_vrnum = getVernum();

        promptFlag = compareVernum(web_vrnum, this_vrnum);  % If fetched vernum is greater

        promptFlag = compareVernum(latest_vrnum, this_vrnum);  % If fetched vernum is greater

        if (promptFlag)

            choice = questdlg(sprintf(['An update for Homer3 is available:\n',...

                updateTxt,...

            choice = questdlg(sprintf([sprintf('An update for Homer3 is available: %s\n', tag),...

                update_body_text,...

                '\nWould you like to download it?']),...

                'Update Available',...

                'Yes','Remind me later','Don''t show this again',...

                'Remind me later');

            if strcmp(choice, 'Yes')

                web('https://github.com/BUNPC/Homer3/releases');

                close(wb);

                web(dest);

                return;

            elseif strcmp(choice, 'Don''t show this again')

                web('https://github.com/BUNPC/Homer3');

                cfg.SetValue('Check For Updates', 'off');

            end

        end

        pause(1);  % To ensure <script> is run

        pause(1);  % To ensure <script> is run on openfnirs.org

        close(wb);

    end

vrnnum{1} = '1';   % Major version #

vrnnum{2} = '33';  % Major sub-version #

vrnnum{3} = '0';   % Minor version #

vrnnum{3} = '1';   % Minor version #

vrnnum{4} = '0';   % Minor sub-version # or patch #: 'p1', 'p2', etc