Fix stream

Fix stream handling:

1. calling conventions for parseFile in stream mode
2. add 'outFile' option to mainFunction stream protocol
3. sort json dict keys and start/endRe events
4. add catchall for exceptions in streaming mode
5. remove unnecessary 'try' block in parseStep, exceptions are treated by (4) or cause clean parser suicide in non-stream mode

mentioned in commit b9c89062

Status changed to merged