changes to regepoch and con2epoch to drop less than 1 sec when epoching

The latest work, seems to be working fine atm, i will test by running the whole pipe to see if it trips up at all. Most files will be no loss, other types might lose up to 1 sec, will try some of these to, to find any mismatches.

marks/branch_func/marks_eeg_regepochs.m

@@ -103,8 +103,8 @@ end
 % calculate number of events to add
 % ---------------------------------
 bg = 0;        % beginning of data
-en = EEG.xmax; % end of data in sec
-nu = floor(EEG.xmax/g.recurrence); % number of type 'X' events to add and epoch on
+en = length(EEG.data); % end of data in sec
+nu = floor(en/(g.recurrence*EEG.srate)); % number of type 'X' events to add and epoch on
 
 % bg = EEG.event(1).latency/EEG.srate;   % time in sec of first event
 % en = EEG.event(end).latency/EEG.srate; % time in sec of last event