Myokit

- Updated documentation and examples.
- Added extra callback option to pso for detailed feedback.
- Updated default search paths for Sundials headers and libraries.

- Small bugfix to IDE.
- Added `pre()` method to Markov simulations (`AnalyticalSimulation` and `DiscreteSimulation`).
- Fixed a bug in `lib.markov.AnalyticalSimulation.run` when `log_interval >= duration`.
- IDE now shows exact location of recent files in status bar.
- Fixed bug in `SymPyExpressionWriter.eq()` and renamed classes to use SymPy with capital P.

- Updated documentation.
- Fixed opencl issue.

- Added methods for easier symbolic addition of names/components for situations where exact names aren't important.
- Bugfix to datalog viewer.
- Bugfix to vargrapher.

- Update to ide: Can now add/remove comments.
- Bugfixes to protocol reading in `AbfFile`.
- Bugfix in `AbfFile` string reading.
- DataLog viewer now opens multiple files if specified on the command line.
- Fix to OpenCL sim reserved names list.
- Various tweaks and fixes.

- Fixed bug in IDE.
- Fix to windows start menu icons.