Add some info on how to do configure with dm.deploy.conf or

dm_dev.deploy.conf.
Add some info on testing once the system is up.

Installation/APSDeveloperInstallation.md

@@ -44,6 +44,8 @@ An example of setting up the Data Management system for a developer is described
 
 > cd ../dev
 
+ - Note some configuration can be changed before processing the as discussed below.  There are two files **dm_dev.deploy.conf** and **dm.deploy.conf** which define some environment variables used in the scripts used to install & configure.  For the test deployment, **dm_dev.deploy.conf** is used.
+
  - Execute the dm/_deploy/_test/_system.sh file in the sbin directory
      - Like installing the support tools, this script builds and installs several components of the DM system so it will take some time to complete.
      - This deploy process will prompt for user input at several points in the process.