Small modifitications for student_application and project_session models:
 1) Remove application_status from student_application
 2) Set default status to incomplete in project_session	and student_application
 3) Set application_deadline two months after is created, in project_session
First version of dashboard for field_host:
-Add fields in project/setup/about_you for login
-Redirect to dashboards/field_host
-Display projects related