Deploy tagged auto-deploy builds to preproduction

This MR introduces a new type of pipeline for auto-deploy.

If omnibus has a tag that follows the auto-deploy format, it will build an ubuntu package and initiate a deploy to preproduction.

• Adds tests for the takeoff helper that didn't exist previously
• Checks in various places to see if the omnibus git tag looks like an auto-deploy tag, if it does we limit jobs to only what is necessary to build and deploy for gitlab.com (to either preprod or staging)
• In the case where we have an auto-deploy build, assets are compiled
• Removes the dependency on the gitlab gem, this was causing issues for spec tests and was only necessary for a pipleline tigger, replaced it with the http gem
• Renames Takeoff to Deployer for both CI variables and the helper, CI variables are duplicated until this is merged