use DateTime::getTimestamp() as argument to IntlDateFormatter::format() for PHP installation consistency
Enforcing composer version in travis builds
Merge branch 'hotfix/4692'

Close #4692
Fix return tag and CS
add zendframework/zend-json to composer.json at Zend\ProgressBar\composer.json as require
Test Day Select Element is populated with 31 value options to test protected method Zend\Form\View\Helper\FormDateSelect::getDaysOptions()
Test Month Select Element is populated with 12 value options to test protected method Zend\Form\View\Helper\FormDateSelect::getMonthsOptions()
Merge pull request #4696 from Ocramius/hotfix/composer-force-branch

[WIP] Enforcing composer version in travis builds
Merge branch 'hotfix/4696'

Close #4696
Merge branch 'hotfix/4696' into develop

Forward port #4696
moved zend-json from require to suggest
Merge remote-tracking branch 'upstream/master'
remove bloated LICENSE at header because already linked using @license
Add option to sort classmap list
add docblock comment
Merge branch 'hotfix/4687'

Close #4687
Merge branch 'hotfix/4687' into develop

Forward port #4687
Added test to ensure that an options argument to Zend\Captcha\ReCaptcha constructor with defined 'public_key' and/or 'private_key' key values are set on the ZendService\ReCaptcha\Recaptcha service via setPublicKey() and setPrivateKey().
Added setPrivateKey() and setPublicKey() calls to ZendService\ReCaptcha\ReCaptcha service if options provided to Zend\Captcha\ReCaptcha constructor contain a 'private_key' and/or 'public_key' key value.
use same variable name for map array, just change the type