Remove adding hanging node constrained entries to the matrix -- it doesn't make a difference in accuracy or runtime. Also compute the predictor using a full time step instead of a half step.
Remove adding hanging node constrained entries to the matrix -- it doesn't make a difference in accuracy or runtime. Also compute the predictor using a full time step instead of a half step.

git-svn-id: 31d9d2f6432a47c86a3640814024c107794ea77c@16165 0785d39b-7218-0410-832d-ea1e28bc413d

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