v0.0.1-beta.2

• feat: Add AttachStacktrace client option to include stacktrace for messages
• feat: Add BufferSize client option to configure transport buffer size
• feat: Add SetRequest method on a Scope to control Request context data
• feat: Add FromHTTPRequest for Request type for easier extraction
• ref: Extract Request information more accurately
• fix: Attach ServerName, Release, Dist, Environment options to the event
• fix: Don't log events dropped due to full transport buffer as sent
• fix: Don't panic and create an appropriate event when called CaptureException or Recover with nil value