Add config.secret_key_base, change MarkusLoggerTest to inherit from MiniTest::Unit::TestCase, fix deprecation warnings
Fix deprecation warnings
Fix houndci warnings
Fix deprecation and houndci warnings
remove TODO comment
remove TODO
Merge pull request #1848 from YusiFan/rails4_new

Add config.secret_key_base, change MarkusLoggerTest to inherit from MiniTest::Unit::TestCase...