1.1.0.56

1. Support video rotation automatically

2. Fixed memory leak

3. Fixed lose audio first frame rendered event
   https://jira.qiniu.io/browse/CPR-137

4. Did significant improvement although we did not reproduce the bugs below,
   https://jira.qiniu.io/browse/CPR-105
   https://jira.qiniu.io/browse/CPR-137
   https://jira.qiniu.io/browse/CPR-139

5. Fixed some AV Sync issue.

6. It will try to connect again if connect failed first time.