Documentation updated
HHVM Badge added
Merge pull request #4 from Spomky-Labs/Documentation

Documentation
Documentation updated
HHVM Badge added
Merge pull request #5 from Spomky-Labs/IssuerParameter

Issuer parameter
Badges links updated
Badge updated
Documentation and bugs fixed
Interval verification
Merge pull request #9 from Spomky-Labs/OTP_Creation

Otp creation
Merge branch 'Spomky-Labs-2.0.x'
Fix fork basis