Merge pull request #6149 in master
Bump version to 2.4.0dev
Fixes #6063
incorporate feedback : patch use Exception, exception message, and @throws docblock
Use AuthenticationServiceInterface as type
Update exception message with Interfacename
Add autoEscape option to FlashMessenger
Added tests for autoEscape via render()
Fixed error in test
Added third parameter to render() whether to use autoEscape
Updated render() docblock with the third parameter
Fixed rebase conflicts, added same functionality to renderCurrent and added tests
Zend\Loader\ClassMapAutoloader - Performance improvement #5716
Added map naming strategy for hydrator
Removed setters from MapNamingStrategy
Make one map required in constructor

As there is no setter for maps at least one map should be required
to instantiate MapNamingStrategy
Strict map keys and values checker
Typo
Fixed return value for method. #6095
Mail TransferEncoding test refactor