o.c.u.pvmanager.*: update to SNAPSHOT
Formula is now read/write expression. Can actually write only if it's a single pv.
o.c.d.probe: probe now accepts formulas
o.c.d.pvmanager.probe: factored out the formula input bar
o.c.d.pvmanager.probe: fixed null formula
o.c.d.pvmanager.probe: using readers/writers from events.
o.c.d.pvmanager.probe: moving fields displaying values in their own box
o.c.d.pvmanager.probe: moving the display of the value in a separate object
o.c.d.pvmanager.probe: fields don't become larger than the space available
o.c.d.pvmanager.probe: reviewing layout and using GridData to show/hide meter
o.c.d.pvmanager.probe: use dropdown action to show/hide sections
o.c.d.pvmanager.probe: using icon and fixing layout refresh problems
o.c.d.pvmanager.probe: factoring out code for hide/show
o.c.d.pvmanager.probe: moved change value to a different box
o.c.d.pvmanager.probe: cleaning up old pieces
o.c.d.pvmanager.probe: cleaning up
o.c.d.pvmanager.probe: code cleanup
o.c.d.pvmanager.probe: fixed errorBar resize
o.c.d.pvmanager.probe: more cleanup
o.c.d.pvmanager.probe: cleaned layout
o.c.d.pvmanager.probe: adding metadata section