Major Description
Add a blank entry to the knox-env.sh file that can be used to specify the location of the pids directory. If this is populated this will override the default use of the pids directory in the knox home directory.
The knox-env.sh now contains this line that can be populated with a fully qualified directory that will be used to maintain the pid files for the running services. This will override the default behavior of writing these to the pids directory in the gateway home directory.
ENV_PID_DIR=""