Merge pull request #6 from nherment/master

Do not stop deleting users but only warn if the service fails to delete logins or resets.
work with new plugin init
gerge branch 'master' of github.com:rjrodger/seneca-user
bump 0.2.10, ready for seneca 0.5.18
init fails with seneca@0.5.18. No need for it :D