Merge branch 'feature/observantrecords-delete' of bitbucket.org:NemesisVex/vigilant-media-network into feature/observantrecords-delete
Created test for create method.
Moving application directory to individual site directory.

Issue: 83
Moving application directory to individual site directory. Began replacing VMModel with MY_Model.

Issue: 83, 84
Merging conflict in Obr_Song_test.php
Merge branch 'feature/observantrecords-delete' of bitbucket.org:NemesisVex/vigilant-media-network into feature/observantrecords-delete
Merge branch 'hotfix/8.1.3'
Merge branch 'release/9.0'
Merge branch 'release/9.1'
Resolving conflicts with ISRC modifications.
For the moment, let's not throw the baby out with the bathwater.
Development will continue in the observantrecords.com folder, but let's
keep the original folder for parallel hotfixes and updates.
Added deletion for songs.
Adding method comments.
Adding deletion for audio files.
Added file removal to database deletion.
Adding model for audio_map table.
Started on deletion for albums.
Adapted retrieve_by_artist_id method. TODO: Rename to get_.
Merge branch 'feature/observantrecords-delete' of bitbucket.org:NemesisVex/vigilant-media-network into feature/observantrecords-delete
Added models for unused ecommerce and content tables. Added deletion to albums.