Fix inv(Hermitian) and let it return a Hermitian type. Make fallback \ call factorize and add factorize noops for types that can already be considered factorized. Add dummy A_ldiv_B! to cholmod.jl to make fallback \ work.
move String rename under 'Language Changes' since this is a core type, and is an extremely visible change
slight doc clarification
Merge branch 'upstream-master'