1.18.0

• New features
  • Deactivate prefix filter for custom message_classes introduced in 1.17.0 by default and make it configurable as general option, since Windows Search Service was needed and not available in all setups.
  • Add manual "Check for Update" button in about box.
• Bug fixes
  • proper check for IsInstantSearchEnabled for the store when using prefix filter.
  • Remove unused DisplayAllProfilesAsGeneric general option.
  • Remove unneeded enableTaskSynchronization in app.config.
  • Change mapping errors to warnings for logging.