Increased precision (close #2740)
I had the indices switched around for the eigenvectors ref #2725
Fixing a few warnings in the modules.

Refs #1777.
Checking for nodal ownership a different way - closes #2743
Merge pull request #2741 from bwspenc/material_tensor_2725

Switch indices for eigenvectors in MaterialTensorCalculator
Merge pull request #2742 from jwpeterson/fixing_warnings

Fixing a few warnings in the modules.
Fixing peacock warning - closes #2745
Merge pull request #2744 from permcody/flood_count_fix

Checking for nodal ownership a different way - closes #2743
Merge pull request #2746 from permcody/peacock_fix_2745

Fixing peacock warning
Merge pull request #2749 from aeslaughter/dt-2740

Increased precision