For managing an LRU cache, we need to use a doubly linked list for move_to_front() operation.

Clearly denote the repository license is from me, not my employer (Facebook).

Move the list of completed and in-progress translations to the top of the README.  Add a translate link to the Contributing section.

Add credits section.  Remove currently non-existent AUTHORS.md.  Fix maintainer copy/paste error.

Resolve #15: Add OmniGraffle template and diagrams

Polish up HTTP, RPC, and intro sections

Update service discovery section to include consul, etcd, and additional details