svn tips

```
svn copy http://example.com/repos/myproject/trunk http://example.com/repos/myproject/branches/releaseForAug -m 'create branch for release on August'
svn merge http://example.com/repos/myproject/branches/releaseForAug
svn merge  http://example.com/repos/myproject/branches/releaseForAug -r150:HEAD
```