Moving onto JuliaLang v0.7.0-
Move to v0.7 (#170) * Clean up parametric functions (including where syntax). * Fix LinearAlgebra includes. * More fixes. * Fix consts * Add SparseArrays using * Fix At_mul_B! * Undef * Fixes * Final fixes. * Update julia and NLSolversBase in require. * Drop v0.6 in travis * Add Reexport to REQUIRE. * Remove Base qualifier for the Test module. * Remove autodiff that is now in NLSolversBase.