Removed old data miner
Simple http server

Simple http server with a handler calling cgminer to get a list of
devices (raw output of cgminer).
Working api

Provides mostly fake information but structure is mostly done.
Global id from hard code.
Seperated keys of cgminer and real keys to be used.
Added config sanity check

Check if same number of devices is reported by cgminer and the local
config.
Merge pull request #7 from drfoliberg/DevDataMiner

Dev data miner