NFD

Management protocol StrategyChoice needs an update on strategy-choice/set command:

• the request contains a prefix of a strategy
• the response should show the versioned strategy Name (not copying from request)

This update and its implementation will be in a follow-up Task.

I decide that it's too loose to allow any prefix of a strategyName to select a strategy.

Design is changed as follows:

• unversioned strategy can only be selected by its exact Name
• versioned strategy can be selected by its exact Name
• versioned strategy can be selected by its unversioned Name, and latest version is preferred
• exact match has priority

For example, if the following strategies are installed:

1. /strategy/P/Q
2. /strategy/P/Q/%FD%03
3. /strategy/P/Q/R/%FD%01
4. /strategy/P/Q/R/%FD%02

The following will happen:

• /strategy selects nothing
• /strategy/P/Q/R/S selects nothing
• /strategy/P/Q selects 1 because exact match has priority
• /strategy/P/Q/R selects 4 because it's the latest version
• /strategy/P selects either 1 or nothing; this is a degree of freedom for implementation, so that implementation doesn't have to determine whether a NameComponent represents a version