Changes in a way that WSDL is generated - dom and objects.
More DOM
Adding in Callback for #3371
Merge remote-tracking branch 'kit10/zf-3371' into zf-3371
Merge commit 'be3e2c48318ff9c5820256a14e2d7ab16b00a1f2' into zf-3371
Fixed prepared statement params
Added test for credential validation callback
Merge branch 'zf-3371' of github.com:youngguns-nl/zf2 into zf-3371
Removed callable type hint since this is PHP 5.4 only
Throw an exception if an invalid callback is provided
DocBlock fixes
Merge branch 'develop' of https://github.com/zendframework/zf2 into develop
Merge remote-tracking branch 'upstream/master'

Conflicts:
	library/Zend/Soap/Wsdl.php
	tests/Zend/Soap/Server/DocumentLiteralWrapperTest.php
	tests/Zend/Soap/WsdlTest.php
Fixes in wsdl generation and tests.
Added ability to use the context in hydrator strategies.
This is very similar how validators are implemented.
More code changes
Merge branch 'master' of https://github.com/zendframework/zf2 into zf-3371
Merge branch 'zf-3371' of github.com:youngguns-nl/zf2 into zf-3371
Added DateTimeNormalizer, use W3C format for DateTime Form elements
Remove unused use statement