The template for ramdisk logs file names can now be changed via
the configuration. The default now contains only node UUID and datetime.
Also a proper tar.gz extension is appended to avoid confusion.
Depends-On: Ie507e2e5c58cffa255bbfb2fa5ffb95cb98ed8c4
Change-Id: I738f9bd35705d0d11c95b0164186ed0b366b5252