Myokit

- Fixed some floating point issues with protocols and pacing.
- Updated OpenCL code to work with VS 9.
- Some small changes to the Protocol API.
- Added format protocol option to IDE.

- Improved support for native OpenCL on MacOS.
- Native maths in OpenCL simulations is now configurable and disabled by default.

- Added support for Sundials 4.0.0
- Made SymPy a dependency.
- Made current loggable in discrete markov simulations.
- Added `log_times` argument to analytical HH simulation.
- Improved performance of analytical HH simulation.
- Added `AbfFile.extract_channel` method that joins sweeps.
- Added `ATF` capability to datalog viewer.
- Added limited `.pro` support to `DataLogViewer`.
- Added `ProgressReporter` that cancels the operation after a time out.
- Added cut/copy/paste options to menu in IDE.
- Bugfix: `myokit.system` didn't check for SymPy version.
- Deprecated `myo` script.
- Changed myokit.VERSION to `myokit.__version__`.
- Various minor tweaks and fixes.

- Added `myokit.lib.hh` module for recognising Hodgkin-Huxley style ion current models and using them in fast analytical simulations.
- Added Rush-Larsen (RL) option to OpenCLSimulation.
- Added CUDA kernel export with RL updates.
- Added `OpenCLRLExporter` for OpenCL kernel with Rush-Larsen.
- Improved logging of intermediary variables in OpenCL simulations.
- Improved logging in `Simulation1d`.
- Fix to ABF reader for (unsupported) userlists (abf v2).
- Fixes to Sundials configuration on Windows.
- Small bugfixes, documentation updates, etc.

- Various fixes to make Myokit work with Python 2.7.6 (and later).

- Now running sundials auto-detection with every `import myokit` if not set in config file.