#41 Need way of running svn upgrade

[edh]

When moving to SVN 1.7 there are problems with SVN working copies from previous versions. The main issue seen is that info and log functions give blank info. The basic svn upgrade command is simple:
http://svnbook.red-bean.com/en/1.7/svn.ref.svn.c.upgrade.html

However, this would be nice to have run progmatically if a change in the SVN version is detected.