release 0.5.2

.gitignore

.travis.yml

CODE_OF_CONDUCT.md

README.md

all/pom.xml

bom/pom.xml

common/pom.xml

...in/java/io/seata/common/exception/FrameworkErrorCode.java

...n/src/main/java/io/seata/common/util/CollectionUtils.java

common/src/main/java/io/seata/common/util/StringUtils.java

common/src/test/java/io/seata/common/XIDTest.java

...ava/io/seata/common/exception/FrameworkExceptionTest.java

...ava/io/seata/common/loader/EnhancedServiceLoaderTest.java

...t/java/io/seata/common/thread/NamedThreadFactoryTest.java

...est/java/io/seata/common/thread/RejectedPoliciesTest.java

common/src/test/java/io/seata/common/util/BlobUtilsTest.java

...c/test/java/io/seata/common/util/CollectionUtilsTest.java

common/src/test/java/io/seata/common/util/NetUtilTest.java

...n/src/test/java/io/seata/common/util/StringUtilsTest.java

...s/META-INF/seata/frenchhello/io.seata.common.loader.Hello