Add simulator for gripper and gas transfer pneumatic actuators
Add temp controller to reactors
Add instructions for installing numpy in virtualenv on linux
Add mixer to reactor
Merge branch 'devel' of github.com:henryeherman/pyelixys into devel
Merge pull request #2 from henryeherman/devel

Merge devel into master, new high level hardware api with elixys abstraction including TempCtrl and Mixer