Fixing build error due to missing .gitignore exclusion for rat
Fixing build error due to missing .gitignore exclusion for rat

git-svn-id: 51e9c0635e05060c2a7639df764e0b3ebb09013f@1388065 13f79535-47bb-0310-9956-ffa450edef68

brianchen2012/syncope,brianchen2012/syncope,brianchen2012/syncope