Remove common service. Create message service. Other little changes.
Refactoring
Thread service: Update redundant threads getter.
ModelExtended: limit parameter for getList()
Refactoring
Merge imageboard manage controllers. Update routes.
Refactoring
Rename some views
Refactoring
Constants for identifiers
Update assets
Refactoring
InvalidArgumentException
Refactoring
UnexpectedValueException
Add Readme, Update SQLDump.