WorldView added
Merge branch 'master' of https://github.com/icpcpp/edward
Merge branch 'master' of https://github.com/icpcpp/edward
Merge branch 'master' of https://github.com/icpcpp/edward
Fixed compiler errors
Merge branch 'master' of https://github.com/icpcpp/edward
Merge branch 'master' of https://github.com/icpcpp/edward