detach view from render context

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Implementation milestones:
1. Redesign render context to remove dirty stage
2. Remove call recursion when rendering
3. Remove texture tossing inside the context
4. Create context (link) hierarchy
5. Make everyone use the new basic rendering link

Achievement benefits:
1. Better modularity.
2. Render chain/manager only knows about internal buffers for the context.
3. View has it's own screen-targeted render link.

Original issue reported on code.google.com by kvarkus on 11 Mar 2011 at 3:16