[BUGFIX] Display error message if "Data/" is not writeable
[BUGFIX] Display error message if "Data/" is not writeable

If the directory "Data/" or "Data/Persistent/" does not exist and could
not be created by the bootstrap, an error message is now displayed which
hints on using the setfilepermissions command.

Change-Id: I3dffa50af13b66d359b11e42a201b76fbc32df26
Resolves: #40890
Release: 1.1, 1.2
Original-Commit-Hash: 939181e9b8e78d8c8304c5d04cc275fb55d2c226

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