Remove reflective fallback for modules (and provides methods), and clean up the attendant code.
Add some javadocs, plus more precisely narrow where an exception is caught.
Mark a fail-over case as such.
fix some javadoc links.
Fix (irrelevant) error in test, and strengthen it to ensure the right failure is being caught.
Merge pull request #281 from cgruber/turnoffreflectioninmodules

Remove reflective fallback for modules (and provides methods)
Fix an inverted conditional that was mistakenly inverted in the move to FailoverLoader and no reflection.
Add a proper test for FailoverLoader.
Rename TestOnlyModuleAdapter -> TestingModuleAdapter to line it up with TestingLoader.
Merge pull request #290 from cgruber/handleabstractparents

Fix conditional that was inadvertently inverted in the FailoverLoader re-work.