Add backwards-compatibility
Set default value for pavlov_options
Add specs for passing of pavlov_options between operations
Update changelog
Deprecate Pavlov.command/query/interactor
Merge branch 'feature/new-api-proposal' into feature/new-initialization
Not deprecating old style command/interactor/query calls
Changed compatibility layer for initialization

This breaks for all old code, but this can be fixed easily by changes these method names.

After that you can upgrade one by one by changing the method name back into `query`, `command` or `interactor`.
Fixing name collisions, fixed adding pavlov options, removed creating pavlov_options in compatablity layer.
fix test, rename, always include comatablity

Fixed tests (must have explicit pavlov_options)
rename in tests interactor => old interactor
always compatability for now
Merge pull request #33 from Factlink/feature/new-initialization

New Initialization