Changeset 9469

#2030

Task- and Plugin-data is stored in the file system instead of the database.
This is accomplished by the Filestream feature of the SQL-Server.

Fixed bug when Heal-Group does not exist.

Note: SqlServer configuration changes are necessary for Filestream feature
​http://www.codeproject.com/Articles/128657/How-Do-I-Use-SQL-File-Stream