Add '.cpplint-cache' to ignore lists for SVN and Git. This change also sets 'ignore' property on '.', although this change isn't visible in Rietveld.

TBR=sgjesse@chromium.org

Review URL: http://codereview.chromium.org/489011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3452 ce2b1a6d-e550-0410-aec6-3dcde31c8c00