Add a custom SvnInfo task to get branch@version information from svn info
and svnversion, replacing the old <propertyregex> tags that ant 1.6.5 
didn't like.

Review by: scottb


git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@3669 8db76d5a-ed1c-0410-87a9-c151d255dfc7