Resolved Issue: #3748 - offsetGet and __get should do a direct proxy to $_SESSION
Updated SessionArrayStorageTest to mark skipped on known failures with 5.3.3
Merge branch 'hotfix/session-array-storage-return' of git://github.com/mwillbanks/zf2 into hotfix/3793
Merge branch 'hotfix/3793'

Close #3793
Fixes #3748