remove enforcing of lower case for column headers

Author: Remi-Gau

saveEventsFile.m

@@ -155,7 +155,7 @@
     %  also prepare an empty field in the structure to collect data
     %  for those
     for iExtraColumn = 1:numel(varargin{1})
-        fprintf(logFile.fileID, '%s\t', lower(varargin{1}{iExtraColumn}));
+        fprintf(logFile.fileID, '%s\t', varargin{1}{iExtraColumn});
     end
 
     % next line so we start printing at the right place

tests/test_saveEventsFile.m

@@ -73,7 +73,7 @@ function test_saveEventsFile()
     C = textscan(FID, '%s%s%s%s%s', 'Delimiter', '\t', 'EndOfLine', '\n');
 
     % check header
-    assert(isequal(C{4}{1}, 'speed'));
+    assert(isequal(C{4}{1}, 'Speed'));
 
     % check that empty values are entered as NaN
     assert(isequal(C{4}{2}, 'NaN'));