The relevancy score in explanation should match the actual score in custom_filters_query

Fixes #2441
Add types and stats to search slow log
closes #2455
no need to check for log levels
we already do that when we log, and those are set to TRACE most times for slow log (since logging is based on thresholds)
Upgrade to Netty 3.5.11
closes #2456
Indexing Slow Log
closes #2457
Deprecate Shared Gateway
closes #2458
Fixed unable to highlight on all multi-valued field values.
Closes #2384
add 0.19.13
Expose fragmenter option for plain / normal highlighter.
Closes #2465
Expose es version in node info api.
Closes #2466
Changed es version from string to class Version.
Add support for ignoring settings in system properties.

An elasticsearch node can be instructed to ignore settings specified in system properties by setting config.ignore_system_properties setting to true.
Wildcard query on non existent field matches all documents
fixes #2461
release 0.20.0
move to 0.20.1 snap
restore deleted plugin path modification
release 0.20.1
move to 0.20.2 snap
Correctly parse *:* query into matchAllDocsQuery

Fixes #2486
First indexing of a dynamic boolean field can cause it not to be indexed correctly
fixes #2487