Helper for ConvertToMD. Refs #5875
Updated code to deal with indirect. Refs #5875.
Unit test and wiki for ConvertToMDHelper. Refs #5875
Fix initializer in test. Refs #5875
Fix error. Refs #5875
Changed wiki. Refs #5875.
Merge remote-tracking branch 'origin/feature/5875_ConvertToMDHelper'