Merge pull request #16 from jfbibeau/small-setup-fixes

Small improvements to setup.sh to fix paths

Changed webserver backend from paste to cheroot, updated bottle

Switched out paste for cherrypy

Modified Warm and Cold PID values

removed hot/cold, modified watchdog thread

seperated heating control from pid loop and added 10ms response time

v0.91 release

first release of silvia-pi