Getting rid of SQLAlchemy, let's try Storm
Adapting FolderManager and the folder part of the CLI
Adapting Scanner

Not fully tested
Updated user part of the CLI and UserManager
Converting...
Converting frontend:folders
Converting frontend:playlists
Converting api:user
Converting api:browsing
Small optim
Converting api:album/songs lists
Converting api:media retreival
Converting api:annotation
Converting api:chat
Converting api:search
Converting api:playlists
make it ready for packaging
Fixed streaming
Fixed scanner for DB schemas with NOT NULL constraints
Added DB schema for SQLite and MySQL