name space bug.
quiver --> streamline
fixed sub2ind and ind2sub (thin wrappers on numpy) as per Issue #58
interp updates
interp bug fixes
Fix and test interpolation. Issue #43
Model that allows interpolation from one mesh to another.
first attempt at activeCell model
updates to combo model
regularization updates.
reg updates
fix regularization
updates to Travis.
Merge branch 'develop' of https://github.com/simpeg/simpeg into cylClean

Conflicts:
	SimPEG/Mesh/TensorMesh.py

also lower top on one test.