Pabot

Improve support for RF 5.0.1 and upcoming RF 5.1.0

What's Changed
* Fix --rerunfailed with 5.0.1 https://github.com/mkorpela/pabot/issues/481
* Fix 5.1a https://github.com/mkorpela/pabot/issues/484

Fix regression with output.xml generation with argumentfileN options.

**Full Changelog**: https://github.com/mkorpela/pabot/compare/2.5.2...2.5.3

- Enhance RF 5 compatibility
- Improve performance with DataDriver

- Fix issue https://github.com/mkorpela/pabot/issues/465 with DataDriver running too many suites.

**Full Changelog**: https://github.com/mkorpela/pabot/compare/2.5.0...2.5.1

New option: `--chunk` Optionally chunk tests to PROCESSES number of robot runs.
Thanks René ( Snooz82 ) for the great idea!

- Fix `randomize` option with RF 5 rc2 - thank [VilleSalonen](https://github.com/VilleSalonen) for reporting this issue!
- Use only 1 robot run with `--processes 1`

**Full Changelog**: https://github.com/mkorpela/pabot/compare/2.3.1...2.4.0