New Release, see Readme:

 New mode to enable indexing: The setting of which document should be indexed is no longer made in the metadata. The setting is now made in File collections.
 New command line task which handles the indexing process
 New localization management: There is no longer a global setting to index documents for all languages. This is now controlled via file collections, which can be translated for the appropriate languages.
 Replace Hooks with Events
 Replace scheduler task for cleanup with a command line task
 Remove Dashboard Widgest from this Extension (now available in hmmh/solr-file-indexer-admin)