use err.message for pool errors when there's no body. closes #789
added 'resume' optional parameter for email sending endpoints
chore(config): Add a default trusted JKU for local development.

* `trustedJKUs` is set to allow a local 123done to be a trusted preVerifyToken generating RP.
Merge pull request #794 from mozilla/add-trusted-dev-preverify-jku

chore(config): Add a default trusted JKU for local development.

r=ckarlof
Add a typ property to preVerifyTokens
Merge pull request #793 from dannycoates/resume

added 'resume' optional parameter for email sending endpoints
Call customs-server /passwordReset endpoint on password reset.
Merge pull request #798 from mozilla/rfk/clear-customs-on-password-reset

Call customs-server /passwordReset endpoint on password reset.
additional data in preVerifyToken errors
jwtError should always return an object for errors
train-21
updated deps
WIP on basket api