Add entity Sale, Course, Validate
add repository ignore
Merge branch 'master' into develop

Conflicts:
	src/Madrasse/AdminBundle/Resources/views/OperationGender/delete.html.twig
Add CRUD PackageStudentPeriod
Update Annotation to mapping database
Add property publisher to operation entity
Package period to controller student
Add entity Document
Begin change menu
Add CRUD Document
Rearrange repository file
define annotation sql
updating module Account with new attribute "principal"
Update query to stats-monthly operation, he include period and accounts principal