Split functionals into 10 instead of 6 hunks and execute
only 4 hunks in parallel to have a lower risk of "stalled"
builds if travis is under load.

Change-Id: I8ea54bac8f94242f90809a79ad934a7334c6955f
Resolves: #77380
Releases: master
Reviewed-on: https://review.typo3.org/49345


Tested-by: Bamboo TYPO3com <info@typo3.com>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>