Hmf

------------------------

**Bugfixes**

- Small bugfixes to update() method

----------------------

------------------------

**Features**

- Addition of cosmo module, which deals with the cosmological parameters in a cleaner way

**Enhancments**

- Major documentation overhaul -- most docstrings are now in Sphinx/numpydoc format
- Some tidying up of several functions.

----------------------

------------------------

**Enhancments**

- The normalization of the power spectrum now saved as an attribute

----------------------

-------------------------

**Enhancements**
- Better updating -- checks if update value is actually different.
- Now performs a check to see if mass range is inside fit range.

**Bugfixes**

- Fixed bug in mltm property

----------------------

-----------------------

**Bugfixes**

- Fixed some issues with n(<m) and M(<m) causing them to give NaN's

----------------------

--------------------------

**Bugfixes**

- Fixed small bug in SMT function which made it crash

----------------------