Bump version: 0.9.1 → 0.9.2

Bump version: 0.9.0 → 0.9.1

Merge pull request simpeg#699 from simpeg/em/feat/3Dcyl-sources

Em/feat/3D cyl sources

Bump version: 0.8.5 → 0.8.6

Merge pull request simpeg#691 from simpeg/ref/em_mass_matrices

ref/em_mass_matrices

Merge pull request simpeg#698 from simpeg/printversion

printversion

Bump version: 0.8.2 → 0.8.3

Merge pull request simpeg#693 from simpeg/bug_fix_invProblem

Bug in `get_dpred` in `invProblem.py`

Merge pull request simpeg#692 from simpeg/bug/L2ObjectiveFct

L2ObjectiveFunction deriv2

Merge pull request simpeg#590 from simpeg/dcip/spectralIP

Dcip/spectral ip