[TASK] Better error message for "unknown section" exception
[TASK] Better error message for "unknown section" exception

Change-Id: I6de1f66402cb5c1d4781f1cdb41e04cb23cf016c
Original-Commit-Hash: a5ff9b2591dc4668498b33d57917b11c64786ae6

daniellienert/flow-development-collection,robertlemke/flow-development-collection,aertmann/flow-development-collection,daniellienert/flow-development-collection,mkeitsch/flow-development-collection,albe/flow-development-collection,chewbakartik/flow-development-collection,aertmann/flow-development-collection,neos/flow-development-collection,bwaidelich/flow-development-collection,robertlemke/flow-development-collection,aertmann/flow-development-collection,dfeyer/flow-development-collection,dlubitz/flow-development-collection,chewbakartik/flow-development-collection,neos/flow-development-collection,albe/flow-development-collection,neos/flow-development-collection,fcool/flow-development-collection,kdambekalns/flow-development-collection,bwaidelich/flow-development-collection,kdambekalns/flow-development-collection,mkeitsch/flow-development-collection,albe/flow-development-collection,gerhard-boden/flow-development-collection,dlubitz/flow-development-collection,neos/flow-development-collection,robertlemke/flow-development-collection,fcool/flow-development-collection,dfeyer/flow-development-collection,dfeyer/flow-development-collection,dfeyer/flow-development-collection,kitsunet/flow-development-collection,fcool/flow-development-collection,kdambekalns/flow-development-collection,kitsunet/flow-development-collection,daniellienert/flow-development-collection,robertlemke/flow-development-collection,mkeitsch/flow-development-collection,gerhard-boden/flow-development-collection,dlubitz/flow-development-collection,chewbakartik/flow-development-collection,gerhard-boden/flow-development-collection,bwaidelich/flow-development-collection,fcool/flow-development-collection,kdambekalns/flow-development-collection,kitsunet/flow-development-collection