adjust reordering logic, extract algorithm into phpcr-utils
move benchmark test about orderBeforeArray to phpcr-utils
Merge remote-tracking branch 'origin/master' into reordering-logic
depend on the right version of phpcr-utils
Merge remote-tracking branch 'origin/master' into reordering-logic

Conflicts:
	composer.json
	src/Jackalope/ObjectManager.php
Merge pull request #147 from jackalope/reordering-logic

adjust reordering logic, extract algorithm into phpcr-utils