[Node update] Support updating ALBA on a single node

[sjovdnbos]

Provide an api to locally update the alba packages on a node to latest greatest.

requirements

use locking, so that no other nodes can update their alba on the same moment

implementation

• apt-get install alba-ee
• update alternatives to the new version
• restart all alba services, one by one, restart all arakoons, one by one

[JeffreyDevloo]

A single node should be able to update all ALBA related components on it.
This holds true for

• proxies
• arakoon
• asds

Implementations:

• It has to be accessible through an API (CLI or HTTP)
• Provide a way to track the update progress
• Use locking to enforce single node

Implement first on andes-updates-4 (1.9x series)

[sjovdnbos]

Extensions:

openvstorage/framework-extensions#227

Framework

#2311

Alba

openvstorage/alba-asdmanager#362