v2.2.6-fix-nemo

2.2.5

Auto compaction was wrongly closed

check TCMALLOC_EXTENSION in pika.cc

Update README_CN.md

bugfix GEO (OpenAtomFoundation#77)

* Update hyperloglog test example

* Modify test

* bugfix geo && update test

code optimizing: don't return reference or pointer of member variable…

…s in pika_server

set timeout to 30s in trysync