Add correction's status to solutions list
Edit correction from solutions list
Create corrections for all student solutions (allows resubmitting
solution)
Removed obsolet view corrections/all_index.erb
Updated assign to me action from assignments/students view
Fixed link for correction edit from correction's index
Merge pull request #41 from fiuba/correct-multiple-solutions-for-same-assignment

Implementación de corrección de múltiples soluciones para el mismo TP y alumno (reentregas)