Add builder for Timeout rule. Make Timeout rule designed for extension
Add missing @since Javadoc for FailOnTimeout.Builder
Update release notes with details on pull 986
Merge pull request #986 from kcooney/Timeout-rule-builder

Add builder for Timeout rule. Make Timeout rule designed for extension.
Document #918
Merge pull request #990 from marcphilipp/release-notes-918

Document #918