some method name refactor
added license header
follow cascade can be set from migration manager
follow cascade can be set from migration manager
Revert "follow cascade can be set from migration manager"

This reverts commit b695f9fcbd5b3af428c06ce6a3ab5c26ff4d65dd.

Conflicts:
	src/main/java/it/polimi/modaclouds/cpimlibrary/entitymng/migration/MigrationState.java
added license header on new file