This is because of the recent 1.7 Subversion update. Cited as bellow:
Prior to version 1.7, Subversion maintained .svn administrative
subdirectories in every versioned directory of your
working copy. Subversion 1.7 offers a completely new approach to how
working copy metadata is stored and maintained,
and chief among the visible changes to this approach is that each
working copy now has only one .svn subdirectory
which is an immediate child of the root of that working copy.