initial commit
implemented first version of rake task
second attempt at refactoring rake task. Added index to karma points, removed additional indices
added additional joint index to user_id and value
renamed user col total_karma to karma_sum, hopefully dealing with naming conflicts between the field and model instance method
changed attr accessible from instance method, changed to karma_sum field
1st part solution
updated user model for karma points
Merge pull request #1 from CoolJorcz/initial

UPDATE: Changed up User model. Finished Part 1: Working on implementing first part of challenge. Currently implementing rake task. Continued update of removing unnecessary indices and superfluous files. Great notes from Ryan about migrations.