NFD

OriginalStrategy needs to access measurements::Entry of not only the PIT entry Name, but also its parent.

It's unsafe to expose the whole table to strategy, because strategy may incorrectly place StrategyInfo onto an entity not under its namespace.

Therefore, a Measurements table accessor (#1276) is necessary to give strategy access to measurements entries under its control.

Currently, OriginalStrategy does not need to access other tables except for the entry directly passed to it.

20140220 conference call decides to rename this as NccStrategy, because "original" is not specific.
Term "CCN" is not used due to concern of possible license issues.

cancelTimers still has problem. This would be solved after Task #1290.