Changed IDEAS scaler continuous actions
from using unreliable :continuous PV to setting totalScans = 0 and
starting the scaler.
Added a button to the persistent view to set totalScans = 0 and start
the scaler.
Modified enable conitious mode button
to also set scaler to 0.1s and added delays to not overwhelm the poor
scaler.
Merge pull request #805 from acquaman/Issue802

Aside from the delay-driven AMWaitActions, everything is good. We'll need to update this when CID gives us a new scaler IOC to work with.