Eclipse Hawk™ 2.1.0

This is a minor release for Hawk, with various user experience improvements:

• Core indexer:
  • Manually requested synchronisations should not schedule a followup synchronisation.
• EOL query engine:
  • Updated to Epsilon 2.2.0.
  • Use WeakHashMap to reduce memory buildup during large queries.
• Greycat backend:
  • Upgrade to Greycat 18 (latest stable release before upcoming redesign from DataThings).
• Local folder connector:
  • [REINDEX] getCurrentRevision() is now consistent with commit revisions.
  • Changes are now detected through SHA1 checksums instead of last modified + size.
• Thrift API:
  • Added basic support for scheduled tasks to remote model indexer (will run in client).
• Time-aware querying:
  • Simplify scoping in the default case (should speed up some queries).
  • Fixes for automatic metamodel registration in time-aware indices.
  • TimelineAnnotation: new derived attribute type for xAnnotated operations.
  • Redesign node wrapping for more robust behaviour during GC-heavy workloads.
• JGit connector:
  • Custom UI added in the Hawk Eclipse configuration dialog.