v4.2.1.dev130: Merge pull request #8 from CybercentreCanada/variable_uid_container

Base

• Improve the way signature/heuristics statistics are generated
• Increase non-json log spacing
• Better Random alerts for debugging

Core

• Improve stat aggregator to use a rolling window

UI - API Server

• Change stats generation to fit new model

UI - Frontend

• Fix extra double quote when URL encoding params