00-crypt.sh: _bootstrap_key: use local variables
00-crypt.sh: drop fixed TODO
initrd.defaults: QUIET=1 is useless here, it's defined in linuxrc
initrd.defaults: don't use backticks
initrd.defaults: uniform quotes to double
00-common.sh: include initrd.defaults
00-crypt.sh: move /sbin/cryptsetup path to ${CRYPTSETUP_BIN}