Removed obsolete buildroot configs & uramdisk manipulation tools.
Updated documentation regarding source based ramdisk (buildroot). Closes issue #1.
Measurement panel numbers & units better alignment.
Added versioning to fw_printenv/fw_setenv u-boot tools.
AUTO button timeout increased.
Measurement panel: Freq & Period: --.- displayed if measurement N/A.
DAC clock phase moved relative to write strobe.