The OscWeightEngine is now hooked into FitWeight and oscillation params can be used as normal fit params.
Adds nuissmear app, which holds functionality recently added and
then removed to/from nuisflat app.
Adds Simple_Osc MCStudy measurement which can be used for very
simple fake data oscillation bias studies. Watch this space
for more fun.
BaseFitEvt now has the probe energy and PDG codes determined
on read in so that Osc weights can be applied to BaseFitEvt
instances.
The -DNO_EXPERIMENTS=1 cmake config option now works and enables
reduced compliation where no experiment classes are enabled.
Can disable individual experiments with -DNO_ANL=1 style flags.
Other tidying and messying where and when I found it/couldn't
be bothered to do it better.