DependencyResolver comparator in depends multimap
DependencyResolver comparator in depends multimap

This should complete the fixes that I *thought* I had finished in
PR #8674, thereby resolving #8659.  Now we have a consistent ordering
for *every* set produced by a resolver, not just every set except the
last.

This appears to fix intermittent #1500 failures for me.  As with the
previous #8659 fix it's hard to be certain, since there's always a
high chance that the previous broken code will work correctly via dumb
luck.

harterj/moose,idaholab/moose,dschwen/moose,laagesen/moose,idaholab/moose,laagesen/moose,bwspenc/moose,harterj/moose,YaqiWang/moose,andrsd/moose,harterj/moose,sapitts/moose,lindsayad/moose,idaholab/moose,milljm/moose,dschwen/moose,yipenggao/moose,andrsd/moose,friedmud/moose,YaqiWang/moose,liuwenf/moose,jessecarterMOOSE/moose,lindsayad/moose,idaholab/moose,lindsayad/moose,permcody/moose,permcody/moose,jessecarterMOOSE/moose,nuclear-wizard/moose,andrsd/moose,milljm/moose,nuclear-wizard/moose,SudiptaBiswas/moose,milljm/moose,jessecarterMOOSE/moose,permcody/moose,YaqiWang/moose,Chuban/moose,friedmud/moose,yipenggao/moose,liuwenf/moose,sapitts/moose,laagesen/moose,sapitts/moose,liuwenf/moose,Chuban/moose,laagesen/moose,jessecarterMOOSE/moose,liuwenf/moose,jessecarterMOOSE/moose,lindsayad/moose,nuclear-wizard/moose,liuwenf/moose,bwspenc/moose,SudiptaBiswas/moose,friedmud/moose,dschwen/moose,milljm/moose,SudiptaBiswas/moose,andrsd/moose,bwspenc/moose,SudiptaBiswas/moose,YaqiWang/moose,dschwen/moose,yipenggao/moose,Chuban/moose,lindsayad/moose,nuclear-wizard/moose,liuwenf/moose,milljm/moose,friedmud/moose,dschwen/moose,laagesen/moose,sapitts/moose,harterj/moose,SudiptaBiswas/moose,bwspenc/moose,permcody/moose,Chuban/moose,sapitts/moose,idaholab/moose,harterj/moose,yipenggao/moose,andrsd/moose,bwspenc/moose