NetworkManager cleartext config files vs home folder encryption

[Per Guth]

Hello,

I recently stumbled over the fact, that NetworkManager by default stores 
Wifi profiles *including clear text passwords* under 
`/etc/NetworkManager/system-connections/`.

I think that is not what one expects when he/she turns on home folder 
encryption and should because of that be corrected somehow.[1]

All the best,
Per Guth

[1]: I fixed it for me (a single user system) by moving the config files 
into my home folder as documented here: 
http://echt.guth.so/moving-networkmanager-config-files-to-home/