remove mistake doc for Zend\Http\PhpEnvironment\Request::detectBaseUrl()
fix Zend\Json doc and little typo
remove if else for same return
remove unused 'require_once __DIR__ . '/SplAutoloader.php';'
Merge pull request #4242 from samsonasik/fix/typo.2

fix Zend\Json doc and little typo
Merge branch 'hotfix/4242'

Close #4242
Merge pull request #4243 from samsonasik/fix/ifelse.remv

remove if else for same return
Merge branch 'hotfix/4243'

Close #4243
Merge pull request #4244 from samsonasik/fix/rem.unused.require

remove unused 'require_once __DIR__ . '/SplAutoloader.php';'
Merge branch 'hotfix/4244'

Close #4244
replaced get_called_class() with get_class($this) in non-static context
Merge pull request #4233 from samsonasik/fix/rem.doc.mistake

remove mistake doc for Zend\Http\PhpEnvironment\Request::detectBaseUrl()
Merge branch 'hotfix/4233'

Close #4233
Fixes #4214
Merge pull request #4246 from prolic/get_class_fix

replaced get_called_class() with get_class($this) in non-static context
Merge branch 'hotfix/4246'

Close #4246
[2.1.5] Prepare for release

- Updated README to remove dev status, provide date
- Updated `Zend\Version` to remove dev status
- Added 2.1.5 entries to CHANGELOG
Merge branch 'releases/2.1.5'

2.1.5 readiness
Bump to next development version
Merge branch 'version/bump'

Bump to next development version
Override 'ServiceManager::has' to do not use peering service managers
Fix #4249