Changed migration script
Merge branch 'master' into migration
Changed migration.rb so that it should be able to migrate students and their location but it has some weird SQL syntax error.
migration.rb is now ready to migrate Students and their location
Merge branch 'master' into migration
Uncommented mysql2 in Gemfile
Added indices to student and location for better performance.
Created raketask "migrate:all" for executing migration. Also added commandline output during migration for better progress information.
schema.rb changed after migrating indices.
Migration rake task works properly for now
Added queries that filter most recent information.
Created better seperation for individual migrations
added migration of departments
added migration of teacher_units
added white space removement to  migration of teacher_units
added  migration of diciplines
Adds longitude and latitude to Location entity.
Adds geocoder gem to gemfile.
Adds missing end keywords to rakefile.
Extends migration so that it uses the geocoding gem