RELATES #2532 implement buffer handling to HydratingResultSet
Update library/Zend/Db/ResultSet/HydratingResultSet.php

removed obsolete whitespaces
Merge branch 'master' of git://github.com/deegital/zf2 into PR2807-deegital-master-develop
PR #2807 Added unit tests for hydrator buffer handling

Signed-off-by: Ralph Schindler <ralph.schindler@zend.com>