switch 0.1.7

Fixes

• Added automatic saving of config after issuing configuration commands using the --set flag. This mode automatically enters configuration mode, commits all of the commands provided, then automatically saves/commits the configuration and exits. This means that commands like config t and write mem are not needed in the list of commands fed to the --set flag.

e.g. ./swITch.py -va auth/auth.txt -i myswitch,cisco_ios -s "logging host 10.10.10.10"