Change some classes' visibility to internal
Refactor FileScanner.Search class. Save search results via PersistantManager. Change access modifier of PersistanceManager.Search class.
Remove unnecessary library references
Merge branch 'master' of github.com:kzemek/FileScanner

Conflicts:
	FileScanner.PersistanceManager/Search.cs
Merge branch 'master' of github.com:kzemek/FileScanner

Conflicts:
	FileScanner.PersistanceManager/Search.cs

Change PersistanceManager.AbstractSearch modifier to public
Solve build conflicts connected with PM API change
Add PM unsupported exception test
Merge branch 'master' of https://github.com/kzemek/FileScanner.git
Merge branch 'master'
Fix encodding in exporting results
SqLitePersistenceManager implementation
Merge branch 'master' of https://github.com/kzemek/FileScanner.git
Merge branch 'PersistanceManager'
Adapt core module to PersistenceManager interface changes