feat(async_jobs): Adds Sidekiq for async jobs

Also changed the watcher library to `listen` to
get support for Mac Development. The other gem only
worked on Linux systems
feat(capistrano): Add deployment of sidekiq
chore(): Remove unused bin
chore(deploy): Update to support sidekiq
fix(): Processed file has full path now
Merge pull request #2 from rhinobird/async-jobs

Async jobs