core/dsl: add DSL function addManifestJson(destination) to add floto manifest to container
server: show unmanaged containers (fixes #18)
ui: hide buttons for unmanaged containers
core: reenabled template validation
server: suppress messages about orderly websocket disconnects
ui: Export Manifest
core (redeploy): ensure container list is mutable before adding registry container
core (proxy): reduce log level for cache hits/misses to debug
server: add client-config.js, disable redeploy buttons via configuration
core/server: destroy unmanaged containers
server (ui): added buttons to start/stop all/group containers
core: escalate HTTP errors when starting containers
core/dsl: added option excludeDirectories to copyDirectory instruction
check if image is present in registry
download image if required
finished push to registry