Added cluster metrics for NetworkSender,NetworkReceiver and StateMachines
Simplify SimpleTokenResolver
Typo
Documentation for enhanced UDC stats.
Tagging for version 2.1.0-RC2
Back to development version.
Changelog update with id reuse fix for 2.1.0-RC2
Merge pull request #2448 from benbc/2.1-more-udc-stats

Documentation for enhanced UDC stats.
Small refactoring of PlanContext and surrounding classes
Merge pull request #2439 from rickardoberg/clustermetrics

Cluster metrics
Add PDF manual back, fix image sizes, upgrade CodeMirror.
Merge pull request #2454 from nawroth/add-pdf-fix-images

Add PDF manual back, fix image sizes, upgrade CodeMirror.
Merge pull request #2452 from jakub-/simple-token-resolver

Simplify SimpleTokenResolver
Merge pull request #2449 from systay/plancontext-tweak

Small refactoring of PlanContext and surrounding classes
Support for multiple pattern predicates in or
o Ands and Ors ASTNodes uses Sets rather than Lists