Merge pull request #1 from yvettecook/model-development

Model development
Project model/scheme had name, description, id and makeathon id
Student model and schema started - student has name and email
Student model and schema started - student has name and email (properly this time)
Students store the Makeathon ID
Functions added to list all projects, names and descriptions, in a Makeathon
Projects can store student ids and rankings
Refactored; makeathon can count its projects and students