Changed LogicallyOrthogonalMesh to LogicallyRectMesh and updated all dependencies.

LOM --> LRM

removed LomView.py, and put plot grid code inside Mesh code.

Added tutorial style introduction to the mesh.

SimPEG/Mesh/__init__.py

@@ -1,9 +1,8 @@
 from Cyl1DMesh import Cyl1DMesh
 from TensorMesh import TensorMesh
 from TreeMesh import TreeMesh
-from LogicallyOrthogonalMesh import LogicallyOrthogonalMesh
+from LogicallyRectMesh import LogicallyRectMesh
 from BaseMesh import BaseMesh, BaseRectangularMesh
 from TensorView import TensorView
-from LomView import LomView
 from InnerProducts import InnerProducts
 from DiffOperators import DiffOperators