Fixed some issues in which CondensedDofInterpreter could fail, either silently or with an exception, on a second invocation.  Also added error result checking for the local solves; will print a warning if an error is returned.
Tweaked GMGOperator's setSmoother.
Added option for using GMRES instead of CG in GMGSolver.
Fixed an issue in which RefinementStrategy would record the total number of elements, instead of the number of active elements.
Added various CLI options, and pretty printing of a summary of the refinements prior to exit.