Revert "Changed Procfile for Play 2.2"

This reverts commit f28a990825cf0f41e860c11b761f5530d4344684.
Revert "Procfile changed"

This reverts commit 12e2f6bc70c753d273315a6ca49e5519159f4403.
Revert "Heroku config added"

This reverts commit 307468f23914c9ced695b09cc8bdf256020ab52f.