Reorganize repo to remove redundant node_modules directory.
Add UUID requirement for outbound messages. Handle HTTP 201 gracefully; retry HTTP callbacks but don't resend previously-sent messages.
Workaround for duplicate messages: work in progress.
Release cached UUIDs after messages are marked `sent` -- work in progress.
Add class factory.
Initial import of Concepto Movil short code API driver.
Remove stray tabs; return moment instance from concepto-movil driver and let the kujua-lite adaptor convert it to a unix timestamp if necessary.
Fix syntax errors.
Bug fixes from joint Concepto Movil / Medic Mobile debugging.
Update README.md
Merge pull request #1 from browndav/master

Pull from upstream