Merge pull request qutip#732 from sahmed95/4.2-release_ready

4.2 release ready

Update4.1 handle num cpus (qutip#669)

* Handle or avoid multiprocessing import errors during qutip.__init__()
factorial import in utilities moved into only function that uses it
multiprocessing import in __init__ within try

* multiprocessing import moved outside the try

Patch4.1 graph utils xcode compile (qutip#662)

* ini files in tests will now be copied into dist

* Readme included in manifest

* C++ headers included in package_data
src directories added to packages
cpp and hpp files included in package_data

* Bump 42 (qutip#657)

* faster rcm

* update norms

* Remove rcm bucky test

the use of int_argsort makes the exact perm array platform dependent.

* Bump versions of master

* Include hpp in package data (qutip#659)

* ini files in tests will now be copied into dist

* Readme included in manifest

* Release status updated (qutip#656)

* C++ headers included in package_data
src directories added to packages
cpp and hpp files included in package_data

* C++ header files included in package data
To ensure they are included during sdist

* BUG: Possible fix for int_argsort in graph_utils. (qutip#660)

* faster rcm

* update norms

* Remove rcm bucky test

the use of int_argsort makes the exact perm array platform dependent.

* Switch to using vector in int_argsort

Hopefully this addresses some issues on OSX

* release status update

C++ headers included in package_data (qutip#658)

src directories added to packages
cpp and hpp files included in package_data

Update setup.py

Merge branch 'qutip-3.1.X' of http://github.com/qutip/qutip into quti…

…p-3.1.X

qutip release 3.0.1

QuTiP 3.0.0 release

QuTiP 2.2.0 tag