Remove destroy action from make all command

[conorsch]

As we start to integrate packaging in the TemplateVMs for distributing the various configurations, it's valuable for development to have the AppVMs persist in the dev env, rather than being destroyed constantly as part of the configuration flow.

Let's update the make all action to enforce state, but not destroy automatically. Doing so will allow developers to get a handle on managing updates over time. We can still run make clean manually if we want to wipe the entire dev env.

We should wait until #172 is merged to implement this change.

[conorsch]

Resolved in #210, specifically 9e91d38