- Added {$service}_AUTO_REGISTER and {$service}_AUTO_CONFIRM_EMAIL env
options for each social auth system.
- Auto-register will allow registration from login, even if registration
is disabled.
- Auto-confirm-email indicates trust and will mark new registrants as
'email_confirmed' and skip 'confirmation email' flow.
- Also added covering tests.
Added versioning file instead of using git tags
(Step towards removing git as a dependancy in the future)
Updated gulpfile to fit with verisioning system and cleaned
up node dependancies.
Fixes#108