simplified plug and play test scripts

-Removed out of date adapter.xml files
-Replaced testing configuration files with a bash script
-Standardized the directory structure for broker / controller testing

We need to agree on the best format for the run_test.sh scripts. I want to replace all of the configuration files (removed in this pull request) with command line arguments in a script. The exact language and content of the script doesn't matter to me.

Don't merge this until I commit an updated test case document.