Docs + noisy LSS
New features:
- We can now have noise in the observation equation in the LSS type (see #167). Thanks @vgregory757
- Docstrings have been cleaned up and now render math in generated html (see #168) Thanks @natashawatkins
Internal changes:
- Maximum number of newton iterations in qnwgamma increased from 10 to 25. Fixes an issue @sglyon had in some research code.