2nd release candidate for 0.9.4 - snapshot 20180524

cfw snapshot as of 2018-05-24

Please consider that this is an untested snapshot that might contain bugs and/or might be instable, might cause crashes or data loss on your SD card.

Important news:

• bugfix for first time installation
• bump ftrobopy to v1.87

Known bugs:

• screen rotation (via Display settings app) will not work if it was previously set manually. In this case, you have to connect to the TXT via ssh and run "sudo chown ftc:ftc /etc/default/launcher" to make it work again.

See history since release of v0.9.4-rc.snapshot-20180507:
compare v0.9.4-rc.snapshot-20180507...v0.9.4-rc.snapshot-20180524