Fix metrics report, when top commands contain double quotes (#336)

* Remove double quotes from cmd

* Correctly escape double quotes in metrics report

tibanna/top.py

@@ -231,7 +231,9 @@ def write_to_csv(self, csv_file, metric='cpu', delimiter=',', colname_for_timest
             last_minute = 5
         with open(csv_file, 'w') as fo:
             # header
-            fo.write(delimiter.join([colname_for_timestamps] + [Top.wrap_in_double_quotes(cmd) for cmd in self.commands]))
+            # we have to escape any double quotes that are present in the cmd, before wrapping it in double quotes. Otherwise we 
+            # will get incorrect column counts when creating the metrics report.
+            fo.write(delimiter.join([colname_for_timestamps] + [Top.wrap_in_double_quotes(cmd.replace('"', '""')) for cmd in self.commands]))
             fo.write('\n')
             # contents
             # skip timepoints earlier than timestamp_start