windows VisualSVN hooks
http://stackoverflow.com/questions/247888/how-to-require-commit-messages-in-visualsvn-server
http://www.anujgakhar.com/2008/02/14/how-to-force-comments-on-svn-commit/
http://blog.csdn.net/ithope123/article/details/10599099
http://www.phpsong.com/529.html
SVN实现在更新本地版本库时忽略指定目录
http://blog.csdn.net/c_singleboy/article/details/45558941
http://blog.xiaket.org/2013/subversion.html