* dump_devinfo improvements
* Scrub only the last three bytes for mac addresses
* Add --target to allow creating fixtures based on discovery
* Save fixtures directly to correct location, add --basedir to allow defining the location of repository root
* Add --autosave to disable prompting for saving
* Update fixtures for devices I have
* Add fixture for HS110 hw 4.0 fw 1.0.4
* Improve help strings
* Fix tests
* Update devtools README
* Default to discovery if no host/target given
