Release "alpha"

• Utils: cache, RARP, ccff, serialize/unserialize;
• Device Manager, HAL (3k/4k/5k/5kv2);
• "arn -a", "arn -m";

Depends:

• libiwinfo-lua;
• RARP: rarp-client/rarp-server

Known issues:

• Utils: JSON not ready yet;
• Throughput calculation not accurate enough.