Automate silencing the bell & updating the working directory

[njbennett]

Currently I need to make 2 configuration changes to iterm2 by hand

• silence bell
• set working directory to the same dir as previous window

It should be possible to automate setting this by using the defaults command, but I'd need to spend some time figuring out how to access the specific keys I want to update.

defaults read com.googlecode.iterm2