added 2 possible appSetting options to ScheduleRepositoryConfiguration:
 - 'scheduleDbConnectionStringName' allows you to specify the name of a connectionstring rather than needing a fixed connection string name
 - 'SchemaName' allows you to specify the name of the DB schema (if you changed it in the DB scripts)

fixed a typo in variable/parameter names
Merge pull request #123 from zidad/schemaName

added 2 possible appSetting options to ScheduleRepositoryConfiguration: