=====Most Recent=====
Returns the most recent update or updates going back in time from now for a specified Unit.

====Usage:====

  * **most recent** [integer: number of entries to return]
    * **for** [text: name of the Unit or Database]

  * **returns:** a list of lists of date/value pairs {{date, value}, {date, value}...}

The return will be in the format of a list of lists, each internal list will have 2 values, the date of the event and the value of the event.


====Examples:====

Get the 3 most recent motion hits from the front porch:

<code>
  tell app “XTdb” to set myHitList to most recent 3 for “front porch motion"
</code>

Get the 10 most recent temperature readings from the server room sensor:

<code>
  tell app “XTdb” to set myTempList to most recent 10 for “server temperature"
</code>