-----------------------
**Features**
- Option to extrapolate high-k for CAMB transfer using EH. This gives a fast and
reasonably consistent high-k transfer function. If not extrapolating with EH (which
is still the default) you can now set ``transfer_params={'kmax':1e3}`` to get better
low-mass/small-scale accuracy. By default, kmax is the same as the default from
CAMB, which is about 1.4 h/Mpc. Above this value, the transfer function is by default
linearly extrapolated in log-log space.
- Components now automatically keep track of models, and the base component class
tracks Component types. This also means that user-defined models can be input via
strings into a framework (useful for running from CLI).