Revert "git commit -m Issue"

How about a *sensible* commit message? ;)

This reverts commit 1a10539f0f33982fc3aa664c23e99c6a921db91d.
Issue #2301245 by sun, joelpittet | larowlan: Fixed Entity system invokes non-existing theme hooks: 'Theme hook  not found.'
Issue #2327455 by marvil07: Fixed Typo in services example use at core.api.php.