Create Customer Profile requests with emails containing a + symbol return E00013 "email is invalid"

Request without error: http://www.screencast.com/t/a5sxNsEn

Request with error: http://www.screencast.com/t/RZPbDcl57S

Request and response without error: https://gist.github.com/jantzenw/cf672ec18b36ac069109dcb452a2d525

Request and response with error: https://gist.github.com/jantzenw/a65636cd78f9757b5eb1222dd63766d5

The first instance of this error was today at 2018-03-29T14:23:40+00:00.

It is critical that the email validation be updated to allow + symbols because this is a valid email character: https://support.google.com/mail/answer/22370?hl=en#alias. This is commonly used in testing to allow multiple accounts to share the same inbox.