Fixed mouse tracking for ColorMapPlot when switched to projections mode, so status string gets updated

Fixed bug in RealTime widget (app crashes when remove all jobs from list and then switch to realtime view)

Merge branch 'precompute' into develop - before starting to really work on the precomputation mechanism

Removed inclusion of FitKernel.h from FitSuite.
This required one nontrivial change: The pointer-to-implementation
must be a simple pointer, not a unique_ptr. If pimpl is a
unique_ptr, then no instance of FitSuite can be created without
knowing the size of FitKernel.