Grade-tracker

gradeTracker is now packaged for pip, and can be installed with

pip install grade-tracker

If installed using pip, the command to run gradeTracker is `grade-tracker`, rather than `gradeTracker` if installed with the makefile

Breaking Changes
The makefile can no longer be used to install, after cloning the repository, run

pip install .

Fixes
- Total weighting no longer needs to be exactly 100. This is to account for weightings that don't neatly divide by 100. A new config variable was created for this.
- `ignore_unmarked` now works as expected. The algorithm hadn't quite been thought through but should now work

Improvements
- There is now an update recipe in the makefile to replace the gradeTracker executable but not the config and data files

First release of gradeTracker. So far it can read and calculate from a file