Add informative error messages

This release adds informative error messages for common errors resulting from numerically unstable parameters/models, missing components of the model, etc.

What's Changed

• Add check if parameters have distributions by @SamWitty in #543
• Throw an error in calibrate if no parameters have distributions by @SamWitty in #546
• Updated optimize documentation for static_parameter_intervention definition by @anirban-chaudhuri in #544
• Added warnings for optimize by @anirban-chaudhuri in #542
• Add more informative error if adaptive time step underflows by @SamWitty in #549
• adding INSTALL.md by @sabinala in #547
• Check whether compilation or evaluation of Mira model is succcessful by @SamWitty in #545
• add more in-depth README by @SamWitty in #551

Full Changelog: v0.1.4...v0.1.5