* docco change to use xargs so you can use -r so it works if there's nothing to do
* added a map-through for angry-caching-proxy so the cache can be persisted, make cache run by default
* added "-l" to drun to list options
caching proxy
proxy calculator
* ignore the cache
* push caching dir through from host to vbox ready for container
* add a new "dsh" alias for common docker command
* clean up finding docker data in alternate locations
* new pgsql docker container - REA specific at this point