Refs #8824 Add method to set range limits on plot and double manager
Refs #8824 Update plotting routines in indirect C2E
refs #8824 Windose unhappy without MantidQT namespace

and though it can be compiled in some convoluted way, (and probably did on Jenkins) it is much better to have it declared.
Merge remote-tracking branch 'origin/bugfix/8824_peak_min_max_limits'