added pre statement execute events
Added parameter bindings
Add Statement Options Feature
Modified parameter binding
Formatting
Applied trim and strtolower to Gravatar email per Gravatar docs: https://en.gravatar.com/site/implement/hash/
Added unit test for properly normalizing emails
Merge PHLAK:hotfix/gravatar-trim-strtolower into master

PR #4976
Revert "Merge PHLAK:hotfix/gravatar-trim-strtolower into master"

This reverts commit e702a42b8e0d745d79531f1340807bd9d9ea65e5, reversing
changes made to 0a747680a366e2b77030e26bf62c6840906f8323.

I mistakingly fetched #4967 instead of #4976.
Merge PHLAK:hotfix/gravatar-trim-strtolower into master

Pull request #4976

Merge commit 'refs/pull/4976/head' of github.com:zendframework/zf2