added actor controller delete functionality
added object delete endpoint
updated controllers to delete relationships as well
updated controllers to delete relationships as well with any direction
removed o from traversal, as we don't need that var
fixed object route for deletion node
fixed postSpecific user endpoint that duplicated actors in database
updated semantic versioning
Merge pull request #27 from natgeo/feature/bf/MIE-1203

Feature/bf/mie 1203