Updated contrib modules ctools and Entity reference
Removed ctools patch from make file
Updated virtual field to version 1.2
Updated relation to version 1.0-rc5
Corrected typo in comment
Merge branch 'master' into development
Updated make file to point to development branch
Updated make file to point to master branch
Merge pull request #4 from ding2tal/core-pr-5

Core pr 5