Added the base solow class.
Renamed Solow model.
Added the examples notebook.
Added the base solow class.
Renamed Solow model.
Added a test suite for the solow class.
Added method for computing the steady state of the model.
Fixed broken import statements.
Added module for cobb-douglas subclass of the solow.model class.
Added an unimplmented method for calibrating the model given some data.
Added model class and docstring.
Cleaned out some garbage.
Added a test suite for the solow module.
Replaced outdated tests file.
Wrote a couple of trivial tests.
Added function for computing the analytic steady state.
Wrote more tests but now tests are failing!
Minor updates to examples notebook.
Merge conflicts.