Change 37signals to basecamp
Use full path to /bin/sh in cx.pow.firewall.plist ProgramArguments.
Merge pull request #444 from mcmorgan/change-37signals-to-basecamp

Change 37signals to basecamp
Merge pull request #458 from futureimperfect/master

Use full path to /bin/sh in cx.pow.firewall.plist ProgramArguments in case PATH is unset