Add reg2name and replace strcmp with strncmp
Add code to parse ranges of arguments
change command line parsing to allow ranges of registers
remove debug code
firmware revision: switch to git-abcdef9
firmware, host: compile info command

This new command (ubertooth-util -V, UBERTOOTH_GET_COMPILE_INFO) embeds
the git revision, name@host of compiler, and a build timestamp into the
firmware.
Mask crc_init values to 24bits
fixed GIT_DESCRIBE/GIT_REVISION bug in assembly_test
Remove package directory that points to my own home directory
 - Apparently my home directory doesn't exist on everyone else's system