Merge pull request #180 from leeyazhou/master

 upgrade pekko's version to v1.1.4

Merge pull request #179 from leeyazhou/master

version: upgrade guava's version to 33.4.6-jre

Merge pull request #144 from yaolinxue/master

upgrade flower version, from 1.0.3 to 1.0.4.

Merge pull request #144 from yaolinxue/master

upgrade flower version, from 1.0.3 to 1.0.4.

Merge pull request #135 from yaolinxue/master

release 1.0.1.RELEASE

Merge pull request #117 from yaolinxue/develop

opentracing

Merge pull request #98 from lingxiezfy/thesis

add thesis pdf and doc

Merge pull request #93 from yaolinxue/develop

update flower version : 0.1.4

Merge pull request #88 from yaolinxue/develop-formatter

update version to 0.1.3

Merge pull request #53 from yaolinxue/develop

注解FlowerService添加方法type()，用来标注服务是否为聚合服务