Improve Distributed Rendering & Task Execution under Flamenco.

Summary from Official Website description: Last year Flamenco had a major release. It is more popular than ever, but still missing certain key features. Now that the basics are there, with some guidance, it is relatively simple to add new functionality. Summary from my proposal: Around a year ago, Flamenco—a rendering-farm Blender addon—was released to improve the workflow for animation artists across the globe. It is extremely successful, but still has many key functionalities that can greatly improve it. The goal of this project is to build upon the foundation of Flamenco, such as designing a web interface for the manager configuration, introducing RNA overrides, and improving stability, to bring it to its full potential.