v0.9.0

Breaking changes:

• Css class names surrounding enum filters were changed.
• --config-init CLI flag is removed
• Add translation configuration for all strings into uiOptions.translations, previous options were also moved here

Other changes:

• Add support for numeric (+ datetime) fields, UI and API filtering and sorting options for them
• Fix to use the relative file path fallback for result title correctly
• Fix unnecessarily reindexing a file in incremental indexing if one of its dependencies is absent