latest updates

- [x] remove dns muckery since our DHCP is now setup properly
- [x] last remaining bits of cleaning on the thrift setup script for mavericks
- [x] allow for username clashes when setting idev password
- [x] fix nvm install script so it actually works
- [x] update ssh config to use the correct name for idev (idev2 was the old machine)

closes item:3848