I propose back-porting the following doc updates to Geode support/1.13 (and 1.12, while we're at it):
- GEODE-2113: User Guide - p2p.HANDSHAKE_POOL_SIZE is obsolete, remove from docs (code fixed in 1.9.0, docs fixed in 1.14.0) - GEODE-7628: Block jmx mbean creation when no security manager is configured (docs) (code fixed in 1.12.0, docs fixed in 1.14.0) - GEODE-8308: Some formatting text visible in the docs (docs only, fixed in 1.14.0) - GEODE-8363: Label Micrometer docs as experimental (docs only, fixed in 1.14.0) - GEODE-8377: User Guide: GFSH GC command should be documented to use only in non-production environments (docs only, fixed in 1.14.0)
