Cap'n Proto for D v0.1.2

[Thomas Brix Larsen via Digitalmars-d-announce]

"Cap’n Proto is an insanely fast data interchange format and 
capability-based RPC system. Think JSON, except binary. Or think 
Protocol Buffers, except faster."

This is the initial public release of my optimized port of the 
Java implementation of Cap'n Proto.

State:
* Passes Cap'n Proto testsuite.
* Optimized. Just a little slower than the official C++ 
implementation (see benchmarks on github).
* Missing RPC part of Cap'n Proto.

http://code.dlang.org/packages/capnproto-dlang
https://github.com/ThomasBrixLarsen/capnproto-dlang