HSEARCH-1455 Removing deprecated @Similarity
HSEARCH-1455 Removing deprecated constants
HSEARCH-1455 Removing deprecated EntityIndexBinder
HSEARCH-1455 Removing deprecated ReaderProviderHelper
HSEARCH-1455 Removing deprecated AbstractDocumentBuilder#isCollectionRoleExcluded
HSEARCH-1455 Removing deprecated SearchFactoryImplementor#getAllIndexesManager
HSEARCH-1455 Removing deprecated LockFactoryFactory
HSEARCH-1455 Removing deprecated MassIndexer#threadsForIndexWriter
HSEARCH-1455 Javadoc fixes
HSEARCH-1455 Removing deprecated default constructor of ScopedAnalyzer
HSEARCH-1455 Removing deprecated constructor of LuceneOptionsImpl
HSEARCH-1312 Adding test to show that reported errors are unrelated.

- Improving error messages and use consistently the Log interface.
- Simplifying NullEncodingFieldBridge creation