Removed hold off for consistent behaviour with the rest of matplotlib.
Merge branch 'master' of https://github.com/simpeg/simpeg
Added points2nodes method to meshutils
Wrapper utils for Solvers
minor documentation updates
Merge branch 'master' of https://github.com/simpeg/simpeg
Updates to Solver Wrappers.

bug fix in dependentProperty
Changed BaseRxList --> BaseRx
Key word args for the model.test() function that go to checkDeriv
bug fix in ActiveModel
Merge branch 'master' of https://github.com/simpeg/simpeg into cylClean
Added nD to Survey.BaseRx