Revert "move new relic middleware to common api"

This reverts commit 13932d01904254d9719d45aa6b0f3b6f27d0261d.
Revert "Monitor api calls with new relic"

This reverts commit c2a19d165d91372f7735485977f87d75d664ab0f.
return avatar for user in posts
Correct API doc posts create