*: add changelog and github templates (pingcap#143)

Signed-off-by: Neil Shen <[email protected]>

restore: fix alter auto increment id for no-primary-key table (pingca…

…p#139) (pingcap#142)

* restore: fix alter auto increment id for no-primary-key table

Signed-off-by: 5kbpers <[email protected]>

* add integration test

Signed-off-by: 5kbpers <[email protected]>

* address comments

Signed-off-by: 5kbpers <[email protected]>

Co-authored-by: 5kbpers <[email protected]>

Merge commit 'cd6a17621c982c16b0043b4192d655c8cedbc9f9' into update-r…

…elease-3.1

Signed-off-by: Neil Shen <[email protected]>