Tweaks to staff directory edits

- Add mouse-over text to let user know that @powertochange.com email
addresses cannot be edited or removed.
- Display feedback to user when an email address’s type is
automatically changed based on it’s domain.
Change background color

Change background color from red to yellow to signify a warning instead
of an error.
adding email signature generator page
with previous
fixing some bugs
update email signature
with previous
with previous
working on email signature
adjusting layout for email signature
Merge branch 'master' into dev

Updating dev with latest changes to master
Merge branch 'dev'
- Add notification when the type of email (ministry or personal) gets
automatically changed.
- Had hover to let users know that @powertochange.org emails can't be modified