Dynamic scaling of roadmap timeline

Problem

Currently the roadmap timeline is static in width and how much time it can display per X width.

If we want to fully support filtering by date presets (roadmaps which essentially display a different date selection from default), which are broader in scope than what is currently supported, this might be a requirement.

Proposal

Let it be scalable in what it can display horizontally (perhaps later vertically as well) similar to http://www.oneviewcalendar.com/