* Formatting fixes

* Added runtime comparisons of algorithms

* Added tests

* Updated README.md

* Added HMM explanation and contents tab

* Added section on fixed lag smoothing

* Added notebook sections on particle filtering and monte carlo localization

* Updated README.md

* Minor formatting fix

* Added decision networks and information gathering agent

* Added notebook sections for decision networks and information gathering agent

* Updated README.md

* corrected cell type

* fixed umbrella_prior not defined error

* minor changes

* Forward-Backward examples added to the ipynb. Fixes issue #813

* Forward-Backward examples added to the probability.ipynb. Fixes issue #813

* Convert Latex syntax to Markdown except from the equations with subscript characters

* probability notebook

* Update test_probability.py

* Update README.md

- Fix relative imports in base of is a package or not
- Fix not working notebooks
- Add notebooks to packages sources