Added interface for context passwords
Simple password validation (to be finished)
Added rules for checking password strength
Cluster password field has type "password"
New schema for cluster
Added debug prefill function in cluster
Cluster context packed in JSON 'data' field
Fixed wrong base64/decrypt order in cluster
Full support for *worker* context encryption

Note: we are still missing:

 - *head* context encryption
 - *cluster* context encryption (the "generated head")
Full support for *head* context encryption

Note: still missing full Cluster encryption!
Preparing for another model evolution in cluster
Model migrated

Note: we are missing previous migrations here!
They will be added later.
Removed UUID... not necessary after all
Added encryption of ClusterDefinition's data

Note: still missing the encryption of the ContextStorage context
which is auto-generated.

Also missing a hook to insert the "key" in the copy-paste cmd.
Full support for *cluster* context encryption

Note: this applies to:
 - the JSON data blob
 - the generated deployable rendered ContextStorage entry
Got rid of one field and fixed bug
Encrypted cluster indication in Dashboard
Clone cluster contexts (only unencrypted)

Note: working on cloning/deploying encrypted contexts as well.
Preparing modal password for encrypted clusters
Support for encrypted contexts in Deploy modal