Polish code

Author: aaron-ai

.asf.yaml

@@ -9,4 +9,3 @@ github:
     projects: true
   protected_branches:
     main: {}
-

.clang-format

@@ -2,4 +2,4 @@ Language: Proto
 ColumnLimit: 120
 SpacesInContainerLiterals: false
 AllowShortFunctionsOnASingleLine: None
-ReflowComments: false
+ReflowComments: false

ChangeLog.md

@@ -1,4 +1,5 @@
-Changes:
+# Changelog
+
 1. v1 --> v2
 2. rpc ReceiveMessage(ReceiveMessageRequest) returns (stream ReceiveMessageResponse) {}
 3. Removed Nack RPC to honor ChangeInvisibleDuration RPC in consistent way;
@@ -8,7 +9,7 @@ Changes:
 7. FIFO flags moved from HeartbeatRequest to ConsumerData
 8. Removed MessageModel enumeration as concept of broadcasting is totally deprecated;
 9. Enums field number = 0 is redefined to meet requirement [Each enum value should end with a semicolon, not a comma. Prefer prefixing enum values instead of surrounding them in an enclosing message. The zero value enum should have the suffix UNSPECIFIED.](https://developers.google.com/protocol-buffers/docs/style)
-10. Nested enumerations are externalized due to the same guide item as above. 
+10. Nested enumerations are externalized due to the same guide item as above.
 
 Remaining Issues:
-How server publishes conf and conf changes to clients
+How server publishes conf and conf changes to clients.

java/VERSION

@@ -1 +1 @@
-1.0.0-SNAPSHOT
+2.0.0-SNAPSHOT