Make SuiteLoaderTest less fragile
Remove overly fragile tests, name fixtures so their purpose is clearer.
Removed a type check only test (that was skipped) and a fragile one
Properly close output buffers to fix #107
Removed another sleep() call in tests
Clean up RunnerIntegrationTest
Merge pull request #111 from 99designs/test-fixture-refactor

Test fixture refactor
fixes #107
fixes #91