Fix #164; convert hashes to indifferent access
Fix #168; return results from invalid outcomes
Remove stringify_the_symbol_keys and transform_keys
Ignore vendor directory
Start v2.0.0 branch
Merge pull request #215 from orgsync/gh-164

Convert hashes to indifferent access
Merge pull request #214 from orgsync/gh-168

Return results from invalid outcomes
updating doc to reflect that a result is always returned
Merge branch 'v2.0.0' into gh-205

Conflicts:
	lib/active_interaction/concerns/runnable.rb