renamed potency test suite binary to potency_test_suite from test_potency because it is easier to tab complete and more descriptive
updated make.sh to add uninstall capability
Merge branch 'RL_26_uninstall_script' into develop Fixes #26
changed return value to be 0 if all test cases pass and 1 if any fail
Merge branch 'RL_25_return_value' into develop Fixes #25