Remove Duplicate Success Callback in PLM Add_Link

Fixes issue /hollie/misterhouse#90
Merge pull request #91 from krkeegan/fix_issue_90

Remove Duplicate Success Callback in PLM Add_Link
Remove unneeeded trailing new line in print_log message
Add Debug Message for new Hop Count Added to Hop Array

Enabled by setting debug level > 3
Merge pull request #96 from krkeegan/hop_tracking

Add Debug Message for new Hop Count Added to Hop Array
Merge pull request #95 from krkeegan/fix_issue_43

Remove unneeeded trailing new line in print_log message