Change some classes' visibility to internal
Remove unnecessary library references
Add PM unsupported exception test
Merge branch 'master' of https://github.com/kzemek/FileScanner.git
Merge branch 'master'
SqLitePersistenceManager implementation
Merge branch 'master' of https://github.com/kzemek/FileScanner.git
Merge branch 'PersistanceManager'
Adapt core module to PersistenceManager interface changes