Merge commit 'refs/pull/3130/head' of github.com:zendframework/zf2 into hotfix/add-space-after-function-keyword
Merge pull request #3130 branch 'hotfix/add-space-after-function-keyword'
Check parameter type
remove the subscription record upon successful unsubscribe
Added check for number of paramters
Added tests
Added filter possibility
Unit tests and error handling
Remove unused property
Fix indentation
Fix value type returned and move methods
Add fromArray methods
removed test failing since PHP>=5.4

noted in #3110 (which added the test)
Fixed reviews
Moved filter implementation to abstract hydrator
Fix unit tests
Fix doc block
Add other fromArray method
Minor changes
Provide default $_SESSION array superglobal proxy storage adapter to play nicely with third party libraries and code