Add diploma, admissions, exam columns #6
Add columns to administrator #6
Merge pull request #9 from rosedu/6-create-models

6 create models
Glue to users, validate student field #10
Validate contact #10
Glue school to student and validate columns #10
Update validations and associations #10
Validate addmission #10
Validate exam fields #10
Merge pull request #11 from rosedu/10-glue-models

10 glue models
resolved conflict in schema.rb