Fix bad paths in source map generation
Fix bad paths in source map generation

Mappy/raven-js,getsentry/raven-js,housinghq/main-raven-js,Mappy/raven-js,housinghq/main-raven-js,getsentry/raven-js,housinghq/main-raven-js,getsentry/raven-js,getsentry/raven-js,Mappy/raven-js