v0.6

Enhancements:

• Include version instrumented with logger
• Support setting mailgun parameters at runtime
• Purge email log w/ weekly job
• Default sender parameter
• API for Mailgun events log
• API for Mailgun tags
• API for Mailgun bounces
• API for Mailgun unsubscribes
• API for Mailgun complaints

Bugs fixed:

• Get correct byte size for clobs