Implemented helper method "VersionFromWorkspace" and added a test case
Calling "MigrationManager.VersionFromWorkspace" where appropriate
Removed "NodeMigrationException" as it is no longer applicable/used
Implemented "MigrationManager.GetBackupFolder" helper method
Unresolved node types now result in dummy nodes
Merge branch 'ChocoButter-2Become1' into MigrationManagerFixes
Merge branch 'ChocoButter-2Become1' into MigrationManagerFixes
Introduced "Configurations.BackupFolderName" to store the string "backup"
Merge pull request #1211 from Benglin/MigrationManagerFixes

Various migration manager fixes