Initial commit, YunMon = PowerMonitor v4
gitignore update
manual add plot.ly yun external lib
Merge branch 'libs-Yun' into project-Yun
personal tokens moved out, functionality tested ok
YunMon_RFM12B - switched interrupts 0 > 4

still to be checked whether working ok - once sun is back :o)
ABANDONED - IRQ 4 switch & RFM12B unsuccessful

**
** DOES NOT WORK - ABANDONED
**
** - pin 7 = IRQ 4 apparently not suited for photodarlington (is
attached to AR9331)
** - RFM12B hangs ...
**
Merge branch 'project-Yun' into projects_all