changed education create and show action to custom and not scafold code. added error partial in the education new form.
added university and course dropdown lists, which get the names of universities and courses and pass the id on submit. also created user-friendly labeles.
Merge branch 'wiki' into educations
added validations in the education model to validate for user id, course id and university id. also fixed educations params in educations controller.
removed all jbuilder files from educations view.
fixed associations with educations and course/univerisyt/user.
displaying the name of the university in the educations index.
renamed the User_id, Course_id and University_id, so that the first letter is not capitalised.
fixed field casing in the education model
Merge branch 'educations'