Set up Controller hierarchy
Start moving VM control into LocalController
Move ErrorBuffer to util
Move remainder of VM start and stop into LocalController
Use separate signal handler for VM startup cancellation
Move rejected-memory handling to LocalController
Drop with_memory argument to AbstractController.start_vm()
Move LoadProgressMonitor handling into LocalController
Move FUSE access check to LocalController
Merge LoadProgressWidget into LoadProgressWindow
Move log monitor to LocalController
Merge _IntStatMonitor into base class
Move RangeConsolidator into util
Move stats and chunk state reporting into controller
Drop _ImageMonitorBase
Fix spurious pylint warning
Move vmnetx.status widgets into vmnetx.view
Disable "too many lines in module" pylint warning
Move vmnetx.status.monitor into vmnetx.controller.local
Fix incorrect low-level call to stop_vm()