* Implement show spaces via meta client

* address dangleptr's comments

* address dutor's comments

* address dangleptr's and dutor's comments

* support go client

* fix packag path and support timeout's defaule argument

* meta server general KV storage

* enhance meta kv storage

* address dangleptr's comment

close #200 

* Refactor schemaManager to support ServerBasedSchemaManager

* Rebase on master

* Changed the metric unit of latency from ms to us

* Rebase and address @dangleptr's comment

* [WIP] Implement GoExecutor

* Address @laura.ding 's comments

* Addressed @dangleptr's comments

* Addressed @zlcook's comment

* Addressed @sherman-the-tank's and @dangleptr's comments

* Fixed a stupid error

* Reverted changes on ThriftClientManager

* Addressed @sherman-the-tank's comments

close #176  
close #177 

* add spec file to build rpm

* Address sherman-the-tank's comments

* Fix compilation failure

* Address steppenwolfyuetong's comments

* Refactor

1) Refactor: renamed RocksdbEngine to RocksEngine
2) Refactor: Combined RocksdbConfigFlags and RocksdbConfigOptions to RocksEngineConfig
3) Cleaned up RocksdbConfigTest and renamed it to RocksEngineConfigTest
4) Modified third-parties build.sh files to make the build support Ubuntu
5) Modified main CMakeFiles.txt to properly handle libLZMA

* Rebased and addressed @dutor's comments

*  1. Replace PartManager and HostManager with MetaClient. Now we support pull meta information from MetaServer.
 2. Support meta change on storage layer. Now we could support add/remove space/part dynamically.

* Address darion's comments and do some minor changes

* Address darion's comments

close #218 

* support statsReader

* Provide a StatsReader web-service to allow reading stats information via HTTP interface

* modify format

* Address dangleptr's comments

* fix compile error because #210 Integrate HTTP Interface into Query, Storage and Meta daemons

* Support Query, Meta and Storage HTTP interface

* move HttpCode to common.h

* support importer

* support native client

* support jni encode method

* support key builder and cmake packaging

* support ENABLE_NATIVE argument to control build native client

* Add storage perf tool

* Fix bug

* Web service

Implemented a framework to support web service (only support GET method) interface

We made getting/setting flags as a common service (We might add stats-reader as
a common service later). Each server can also register its own web service handler
to process specific task

* Addressed @dangleptr's comment

* Tweak the cmake file to pull the common libraries out to the master file

* Chatted with @dutor offline. Implemented his suggestions

1) Make the build works for both gcc-8.2.1 and older version

2) Moved more libs to the common list

* Fixed folly build

* Fixed proxygen build

* Fixed libunwind lib issue

* Make SSL nad KRB libs dependencies of folly

When disabling the java_client build, we need to skip the clean-java-client task as well

* fixed java client  style check error

* format the file checkstyle-suppressions.xml

* Improved the problem of isolating files with the same name

The problem was caused by the LIBDIR is not same across different Linux releases