Use the version 1.x series, not the new version 2. 1.x is less convoluted and easier to use. There might be some http://en.wikipedia.org/wiki/Second-system_effect I think.
Use the version 1.x series, not the new version 2. 1.x is less convoluted and easier to use. There might be some http://en.wikipedia.org/wiki/Second-system_effect I think.