Force pkg-config version 0.3.6 for now, 0.3.7 broke Rust 1.0 build
Force pkg-config version 0.3.6 for now, 0.3.7 broke Rust 1.0 build

energymon/energymon-sys,connorimes/energymon-sys,energymon/energymon-sys,connorimes/energymon-sys