v3 b2 fixes and enhancements

fixes and internal enhancements that do not affect endpoints, except in error handling

send message to rollbar for long or large message responses
fix this bad use of no_db in tests
some documentation fixes
remove no-longer-used smartos files
add --updated-since option to thin_device_reports
new command to reset user passwords and clear auth tokens
gracefully handle SMTP errors
make user_account.name unique
fix for create_user: the user was not receiving the password if it was randomly-generated

joyent / conch-api