Refs #87 - Revert changes to mock setup methods.
Refs #87 - Re-add removed alias for Synapse\Stdlib\Arr.
Refs #87 - Allow defining expectations on results and fix broken test.
Refs #87 - Fix PSR-2 issue.
Merge pull request #87 from synapsestudios/bugfix/87-mapper-test-case-no-longer-catches-multiple-query-strings

MapperTestCase no longer catches multiple query strings